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The Tool Company High Performance Taps 2011 Full-Line Catalog Contents GENERAL INFORMATION sæ)NDEXæTOæ'UHRINGæ4APSæ sæ4APæ#OMPASSææ-ATERIALæ3ELECTIONæ'UIDEæ sæ-ATERIALæ(ARDNESSæ#ROSSæ2EFERENCEæ#HARTæ 0AGEæ 0AGEæ 0AGEæ CUT TAPS sæ&ORæGENERALæPURPOSEæAPPLICATIONSæ sæ&ORæALLOYEDææUNALLOYEDæSTEELSæ sæ&ORæSTAINLESSæSTEELSææAEROSPACEæALLOYSæ sæ&ORæHIGHTENSILEæANDæTOOLæSTEELSæ sæ&ORæCASTæIRONææABRASIVEæMATERIALSæ sæ&ORæALUMINUMææALUMINUMæALLOYSæ sæ&ORæTITANIUMæNICKELæANDæTHEIRæALLOYSæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ4HROUGHæHOLEæ sæ"LINDæHOLEæ sæ%'-æ 0AGEæ 0AGEæ 0AGEæ FORM TAPS sæ4ECHNICALæOVERVIEWæ sæ5.#5.&æ sæ-ETRICæ sæ-ETRICæFINEæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ PIPE TAPS sæ.04ææ.04&æ æ 0AGEæ TECHNICAL INFORMATION sæ$EFINITIONSæFLUTEæFORMSæCHAMFERæFORMSæ sæ4APæTOLERANCESæANDæAPPROXæLIMITSæ sæ#UTTINGæRATEæRECOMMENDATIONSæ sæ$).æCHARACTERISTICæFEATURESæFORæTAPSæ sæ'UHRINGæSUBSTRATEæANDæCOATINGæDESCRIPTIONSæ sæ4APæDRILLæSIZESæ sæ4ROUBLESHOOTINGæ 0AGEæ 0AGEæ 0AGEæ 0AGEæ 0AGEæææ 0AGEææ 0AGEææ sæ#OBALTæ0-æCOBALTæANDæCARBIDEæTAPSæ 0AGEæ STI TAPS GUHRING NO. APPENDIX &ORæWELLæOVERææYEARSæTHEæNAMEæ'UHRINGæHASæBEENæAS SOCIATEDæWITHæCUTTINGæTOOLæINNOVATIONæANDæQUALITYæ(IGH PRODUCTIONæFACILITIESæONæEVERYæCONTINENTæRELYæONæ'UHRINGæ TECHNOLOGYæTOæELEVATEæTHEIRæPRODUCTIVITYæANDæMANUFACTU RERSæOFæHIGHPRECISIONæPARTSæKNOWæTHATæ'UHRINGæPROVIDESæ CONSISTENTæQUALITYæANDæPERFORMANCE Select .OWæSMALLERæMACHINEæSHOPSæCANæALSOæENJOYæTHEæBENElTSæOFæ'UHRINGSæWELLKNOWNæCUTTINGæTOOLæEXPERTISEæ WITHæGUHRING SelectæAæCATEGORYæOFæSTOCKEDæSTANDARDæDRILLSæTAPSæANDæVARIABLEæHELIXæCARBIDEæENDæMILLSæ 4HISæCATEGORYæISæCOMPRISEDæOFæEXISTINGæCUTTINGæTOOLæSERIESæCURRENTæPRODUCTSæWHICHæAREæALREADYæFAVORITESæ INæMANYæMACHINEæSHOPSæACROSSæTHEæ5NITEDæ3TATES %ACHæGUHRING SelectæSERIESæHASæBEENæCHOSENæBECAUSEæOFæITSæVERSATILITYæINæAæWIDEæRANGEæOFæMATERIALSæ ANDæMACHININGæOPERATIONSæTOæPROVIDEæYOUæWITHæAæFULLæCOMPLIMENTæOFæQUALITYæDRILLæTAPæANDæENDæMILLæ OPTIONSæATæANæECONOMICALæPRICEæ4HESEæTOPQUALITYæCUTTINGæTOOLSæWILLæINCREASEæYOURæPRODUCTIVI TYæANDæBECAUSEæTHEYREæGUHRING SelectæYOUæCANæsave 22% - 40%æOVERæSIMILARæSTYLEæTOOLSæBYæ PURCHASINGæTHEMæ&ORæTHEæMANæSHOPæORæTHEæHIGHPRODUCTIONæFACILITYæ'UHRINGæHASæAæGUHRING SelectæTOOLæWHICHæCANæHELPæINCREASEæPROlTABILITY ,OOKæFORæTHEæGuhring SelectæLOGOæTOæQUICKLYæIDENTIFYæTHESEæECONOMICALæCUTTINGæTOOLæ CHOICES Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. UNC UNC 2B ANSI B Cobalt bright finish 30 3961 UNC 2B ANSI B Cobalt MolyGlide® 30 873 UNC 2B DIN 371 B Cobalt bright finish 30 878 UNC 2B DIN 376 B Cobalt bright finish 30 3902 UNF 2B ANSI B Cobalt bright finish 31 3962 UNF 2B ANSI B Cobalt MolyGlide® 31 908 UNF 2B DIN 374 B Cobalt bright finish 31 3900 Metric 6H ANSI B Cobalt bright finish 32 3960 Metric 6H ANSI B Cobalt MolyGlide® 32 803 Metric ISO 2 (6H) DIN 371 B Cobalt bright finish 32 815 Metric ISO 2 (6H) DIN 376 B Cobalt bright finish 33 Index 3901 UNF METRIC METRIC FINE 827 Metric Fine ISO 2 (6H) DIN 374 B Cobalt bright finish 34 830 Metric Fine ISO 2 (6H) DIN 374 C Cobalt bright finish 35 3913 UNC 2B ANSI B Cobalt bright finish 42 3916 UNC 2B ANSI B Cobalt TiN coated 42 3946 UNC 2B ANSI B Cobalt TiCN coated 42 2881 UNC 2B DIN 371 B Cobalt oxide finish 42 2883 UNC 2B DIN 376 B Cobalt oxide finish 42 UNC Select General Purpose Competitively priced high-performance alternative to generic taps - See page 2 for details Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 3 Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. Index UNF 3914 UNF 2B ANSI B Cobalt bright finish 43 3917 UNF 2B ANSI B Cobalt TiN coated 43 3947 UNF 2B ANSI B Cobalt TiCN coated 43 2885 UNF 2B DIN 374 B Cobalt oxide finish 43 3912 Metric 6H ANSI B Cobalt bright finish 44 3915 Metric 6H ANSI B Cobalt TiN coated 44 3945 Metric 6H ANSI B Cobalt TiCN coated 44 2876 Metric 6H DIN 371 B Cobalt oxide finish 44 METRIC METRIC FINE 3973 Metric Fine 6H ANSI B Cobalt TiN coated 45 2879 Metric Fine ISO 2 (6H) DIN 374 B Cobalt oxide finish 45 OVERSIZED 3982 UNC / oversized H7 ANSI B Cobalt TiN coated 56 3986 UNC / oversized H11 ANSI B Cobalt TiN coated 56 3983 UNF / oversized H7 ANSI B Cobalt TiN coated 57 3987 UNF / oversized H11 ANSI B Cobalt TiN coated 57 3990 UNC / STI 3B STI Tap B Cobalt TiN coated 60 3991 UNF / STI 3B STI Tap B Cobalt TiN coated 60 Metric 6H mod EG M Cobalt TiN coated 62 STI EG M 1010 4 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. UNC UNC 3B ANSI B Cobalt TiN coated 66 3907 UNC 2B ANSI B PM cobalt TiN coated 66 1980 UNC 2B DIN 371 B Cobalt bright finish 66 1985 UNC 2B DIN 376 B Cobalt bright finish 66 3997 UNF 3B ANSI B Cobalt TiN coated 67 3908 UNF 2B ANSI B PM cobalt TiN coated 67 1990 UNF 2B DIN 374 B Cobalt bright finish 67 3906 Metric 6H ANSI B PM cobalt TiN coated 68 877 Metric ISO 2 (6H) DIN 371 B PM cobalt bright finish 69 879 Metric ISO 2 (6H) DIN 376 B PM cobalt bright finish 68 1870 Metric ISO 2 (6H) DIN 371 B Cobalt bright finish 69 1872 Metric ISO 2 (6H) DIN 376 B Cobalt bright finish 68 Metric Fine ISO 2 (6H) DIN 374 B Cobalt bright finish 69 UNC 2B DIN / ANSI B PM cobalt TiN coated 78 UNF 2B DIN / ANSI B PM cobalt TiN coated 78 Index 3996 UNF METRIC METRIC FINE 1873 UNC 3992 UNF 3994 General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 5 Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. Index METRIC 4122 Metric 6H DIN / ANSI B PM cobalt TiN coated 79 4123 Metric Fine 6H DIN / ANSI B PM cobalt TiN coated 79 804 Metric 6H DIN 371 B Cobalt bright finish 80 1914 Metric ISO 2 (6H) DIN 371 B Cobalt TiCN coated 80 816 Metric ISO 2 (6H) DIN 376 B Cobalt bright finish 80 1915 Metric ISO 2 (6H) DIN 376 B Cobalt TiCN coated 80 Metric Fine ISO 2 (6H) DIN 374 B Cobalt bright finish 81 3937 UNC 2B ANSI C Cobalt FIREX® coated 92 1979 UNC 2B DIN 371 C Cobalt oxide finish 92 1984 UNC 2B DIN 376 C Cobalt oxide finish 92 3938 UNF 2B ANSI C Cobalt FIREX® coated 93 1989 UNF 2B DIN 374 C Cobalt oxide finish 93 3936 Metric 6HX ANSI C Cobalt FIREX® coated 94 969 Metric ISO2(6H) DIN 371 C Carbide bright finish 97 1883 Metric ISO2(6H) DIN 376 C Carbide bright finish 97 1858 Metric ISO2(6H) DIN 371 C Carbide bright finish 94 1859 Metric ISO2(6H) DIN 376 C Carbide bright finish 94 318 Metric 6HX DIN 371 C Cobalt TiAlN oated 98 1890 Metric 6HX DIN 371 C Cobalt oxide finish 98 319 Metric 6HX DIN 376 C Cobalt TiAlN oated 98 1897 Metric 6HX DIN 376 C Cobalt oxide finish 98 METRIC FINE 828 UNC UNF METRIC 6 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. METRIC FINE Metric Fine ISO2(6H) DIN 371 C Carbide bright finish 97 1861 Metric Fine ISO2(6H) DIN 371 C Carbide bright finish 95 1860 Metric Fine ISO2(6H) DIN 374 C Carbide bright finish 95 347 Metric Fine 6HX DIN 374 C Cobalt TiAlN coated 98 1904 Metric Fine 6HX DIN 374 C Cobalt oxide finish 98 3925 UNC 2B ANSI B Cobalt bright finish 102 3928 UNC 2B ANSI B Cobalt TiN coated 102 3967 UNC 2B ANSI B Cobalt MolyGlide® 102 3926 UNF 2B ANSI B Cobalt bright finish 102 3929 UNF 2B ANSI B Cobalt TiN coated 102 3968 UNF 2B ANSI B Cobalt MolyGlide® 102 3924 Metric 6H ANSI B Cobalt bright finish 103 3927 Metric 6H ANSI B Cobalt TiN coated 103 3966 Metric 6H ANSI B Cobalt MolyGlide® 103 1858 Metric ISO 2 (6H) DIN 371 C Carbide bright finish 103 1859 Metric ISO 2 (6H) DIN 376 C Carbide bright finish 103 Index 972 UNC UNF METRIC METRIC FINE 1860 Metric Fine ISO 2 (6H) DIN 371 C Carbide bright finish 103 1861 Metric Fine ISO 2 (6H) DIN 376 C Carbide bright finish 103 General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 7 Through hole taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. 2BX DIN 371 B PM cobalt bright finish 110 2BX DIN 371 B PM cobalt bright finish 110 2BX DIN 371 B PM cobalt bright finish 110 2BX DIN 371 B PM cobalt bright finish 110 6HX DIN 371 B PM cobalt bright finish 111 6HX DIN 371 B PM cobalt bright finish 111 6HX DIN 371 B PM cobalt bright finish 111 6HX DIN 371 B PM cobalt bright finish 111 UNC Index 2904 2918 UNC 2905‡ UNC Ni Ti UNF 2906 2919 UNF 2907‡ UNF Ni Ti METRIC 2900 2916 Metric 2901‡ Metric Ni Ti METRIC FINE 2902 2917 Metric Fine Ni 2903‡ Metric Fine Ti ‡ Design change - Crossed out series numbers are being replaced with the numbers with this symbol: ‡ 8 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. UNC UNC 2B ANSI C 40° helix Cobalt bright finish 36 3964 UNC 2B ANSI C 40° helix Cobalt MolyGlide® 36 876 UNC 2B DIN 371 C 40° helix Cobalt bright finish 36 881 UNC 2B DIN 376 C 40° helix Cobalt bright finish 36 3905 UNF 2B ANSI C 40° helix Cobalt bright finish 37 3965 UNF 2B ANSI C 40° helix Cobalt MolyGlide® 37 911 UNF 2B DIN 374 C 40° helix Cobalt bright finish 37 3903 Metric 6H ANSI C 40° helix Cobalt bright finish 38 3963 Metric 6H ANSI C 40° helix Cobalt MolyGlide® 38 810 Metric ISO 2 (6H) DIN 371 C 40° helix Cobalt bright finish 38 822 Metric ISO 2 (6H) DIN 376 C 40° helix Cobalt bright finish 38 Cobalt bright finish 35 Index 3904 UNF METRIC METRIC FINE 830 Metric Fine ISO 2 (6H) DIN 374 C 833 Metric Fine ISO 2 (6H) DIN 374 C 15° helix Cobalt bright finish 39 834 Metric Fine ISO 2 (6H) DIN 374 C 40° helix Cobalt bright finish 39 Select General Purpose Competitively priced high-performance alternative to generic taps - See page 2 for details Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 9 Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. Index UNC 3977 UNC 2B ANSI E 40° helix Cobalt TiN coated 48 3919 UNC 2B ANSI C 40° helix Cobalt bright finish 46 3922 UNC 2B ANSI C 40° helix Cobalt TiN coated 46 3949 UNC 2B ANSI C 40° helix Cobalt TiCN coated 46 3954 UNC 2B ANSI C 40° helix Cobalt TiN coated 49 1837 UNC 2B DIN 371 C(K) 40° helix Cobalt TiN coated 46 3978 UNF 2B ANSI E 40° helix Cobalt TiN coated 48 3920 UNF 2B ANSI C 40° helix Cobalt bright finish 47 3923 UNF 2B ANSI C 40° helix Cobalt TiN coated 47 3950 UNF 2B ANSI C 40° helix Cobalt TiCN coated 47 3955 UNF 2B ANSI C 40° helix Cobalt TiN coated 49 1838 UNF 2B DIN 374 C(K) 40° helix Cobalt TiN coated 47 3976 Metric 6H ANSI E 40° helix Cobalt TiN coated 53 3918 Metric 6H ANSI C 40° helix Cobalt bright finish 50 3921 Metric 6H ANSI C 40° helix Cobalt TiN coated 50 3948 Metric 6H ANSI C 40° helix Cobalt TiCN coated 50 4126 Metric 2B ANSI C 40° helix Cobalt TiN coated 50 2790 Metric ISO 2 (6H) DIN 371 E 40° helix Cobalt bright finish 53 889 Metric ISO 2 (6H) DIN 371 C 40° helix Cobalt bright finish 51 2791 Metric ISO 2 (6H) DIN 376 E 40° helix Cobalt bright finish 53 890 Metric ISO 2 (6H) DIN 376 C 40° helix Cobalt bright finish 51 UNF METRIC 10 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. METRIC FINE Metric Fine 6H ANSI C 40° helix Cobalt TiN coated 52 2792 Metric Fine ISO 2 (6H) DIN 374 E 40° helix Cobalt bright finish 54 2424 Metric Fine ISO 2 (6H) DIN 374 C 40° helix Cobalt bright finish 52 Index 3974 OVERSIZED 3980 UNC / oversized H7 ANSI C 40° helix Cobalt TiN coated 58 3984 UNC / oversized H11 ANSI C 40° helix Cobalt TiN coated 58 3981 UNF / oversized H7 ANSI C 40° helix Cobalt TiN coated 59 3985 UNF / oversized H11 ANSI C 40° helix Cobalt TiN coated 59 3988 UNC / STI 3B STI Tap C 40° helix Cobalt TiN coated 61 3989 UNF / STI 3B STI Tap C 40° helix Cobalt TiN coated 61 Metric 6H mod EG M 40° helix Cobalt TiN coated 3998 UNC 3B ANSI C 40° helix Cobalt TiN coated 70 3910 UNC 2B ANSI C 40° helix PM cobalt TiN coated 70 1981 UNC 2B DIN 376 C 40° helix Cobalt bright finish 70 1986 UNC 2B DIN 376 C 40° helix Cobalt bright finish 70 3999 UNF 3B ANSI C 40° helix Cobalt TiN coated 71 3911 UNF 2B ANSI C 40° helix PM cobalt TiN coated 71 2867 UNF 2B DIN 374 C 40° helix Cobalt bright finish 71 STI EG M 1011 63 UNC UNF General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 11 Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. Index METRIC 3909 Metric 6H ANSI C 40° helix PM cobalt TiN coated 72 909 Metric ISO 2 (6H) DIN 371 C 40° helix PM cobalt bright finish 72 910 Metric ISO 2 (6H) DIN 376 C 40° helix PM cobalt bright finish 72 2896 Metric ISO 2 (6H) DIN 371 C 15° helix Cobalt TiN coated 73 2895 Metric ISO 2 (6H) DIN 376 C 15° helix Cobalt TiN coated 73 METRIC FINE 936 Metric Fine ISO 2 (6H) DIN 374 C 40° helix PM cobalt bright finish 72 2897 Metric Fine ISO 2 (6H) DIN 374 C 15° helix Cobalt TiN coated 73 Guhring Std. Cobalt TiN coated 74 Guhring Std. Cobalt TiN coated 74 PIPE TAP - NPT 1088 NPT PIPE TAP - NPTF 4127 NPTF UNC 3993 UNC 2B DIN / ANSI C 40° helix PM cobalt TiN coated 82 4124 UNC 2B DIN / ANSI C 15° helix PM cobalt TiN coated 83 3995 UNF 2B DIN / ANSI C 40° helix PM cobalt TiN coated 82 4125 UNF 2B DIN / ANSI C 15° helix PM cobalt TiN coated 83 4120 Metric 6H DIN / ANSI C 40° helix PM cobalt TiN coated 84 1188 Metric 6HX DIN 371 C 15° helix PM cobalt TiCN coated 87 1194 Metric 6HX DIN 374 C 15° helix PM cobalt TiCN coated 87 811 Metric ISO 2 (6H) DIN 371 C 40° helix Cobalt bright finish 85 823 Metric ISO 2 (6H) DIN 376 C 40° helix Cobalt bright finish 86 935 Metric ISO 2 (6H) DIN 376 C 15° helix PM cobalt bright finish 87 UNF METRIC 12 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Blind hole taps Series Thread Type 1894 Color Ring Standard Chamfer Lead Helix Substrate Finish Page No. Metric ISO 2 (6H) DIN 371 C 40° helix Cobalt bright finish 85 1916 Metric ISO 2 (6H) DIN 371 C 40° helix Cobalt TiCN coated 85 1901 Metric ISO 2 (6H) DIN 376 C 40° helix Cobalt bright finish 85 1917 Metric ISO 2 (6H) DIN 376 C 40° helix Cobalt TiCN coated 86 2944 Metric ISO 2 (6H) Guhring Std. D 0° helix Carbide TiCN coated 86 Index Class of Fit METRIC FINE 4121 Metric Fine 6H DIN / ANSI C 40° helix PM cobalt TiN coated 84 1200 Metric Fine 6HX DIN 376 C 15° helix PM cobalt TiCN coated 87 835 Metric Fine ISO 2 (6H) DIN 374 C 40° helix Cobalt bright finish 88 1907 Metric Fine ISO 2 (6H) DIN 374 C 40° helix Cobalt bright finish 88 4118 UNC 2B DIN / ANSI C Carbide bright finish 96 3937 UNC 2B ANSI C Cobalt FIREX® coated 92 1979 UNC 2B DIN 371 C Cobalt oxide finish 92 1984 UNC 2B DIN 376 C Cobalt oxide finish 92 4119 UNF 2B DIN / ANSI C Carbide bright finish 96 3938 UNF 2B ANSI C Cobalt FIREX® coated 93 1989 UNF 2B DIN 374 C Cobalt oxide finish 93 3936 Metric 6HX ANSI C Cobalt FIREX® coated 94 1858 Metric ISO2(6H) DIN 371 C Carbide bright finish 94 1859 Metric ISO2(6H) DIN 376 C Carbide bright finish 94 318 Metric 6HX DIN 371 C Cobalt TiAlN coated 98 319 Metric 6HX DIN 376 C Cobalt TiAlN coated 98 UNC UNF METRIC General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 13 Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. Index METRIC FINE 972 Metric Fine ISO2(6H) DIN 371 C Carbide bright finish 97 1861 Metric Fine ISO2(6H) DIN 371 C Carbide bright finish 95 1860 Metric Fine ISO2(6H) DIN 374 C Carbide bright finish 95 347 Metric Fine 6HX DIN 374 C Cobalt TiAlN coated 98 1904 Metric Fine 6HX DIN 374 C Cobalt oxide finish 98 3931 UNC 2B ANSI C 45° helix Cobalt bright finish 105 3934 UNC 2B ANSI C 45° helix Cobalt TiN coated 105 3970 UNC 2B ANSI C 45° helix Cobalt MolyGlide® 105 3932 UNF 2B ANSI C 45° helix Cobalt bright finish 105 3935 UNF 2B ANSI C 45° helix Cobalt TiN coated 105 3971 UNF 2B ANSI C 45° helix Cobalt MolyGlide® 105 3930 Metric 6H ANSI C 45° helix Cobalt bright finish 106 3933 Metric 6H ANSI C 45° helix Cobalt TiN coated 106 3969 Metric 6H ANSI C 45° helix Cobalt MolyGlide® 106 969 Metric ISO 2 (6H) DIN 371 C Carbide bright finish 106 971 Metric ISO 2 (6H) DIN 371 C Carbide bright finish 106 1883 Metric ISO 2 (6H) DIN 376 C Carbide bright finish 106 Carbide bright finish 107 UNC UNF METRIC 15° helix METRIC FINE 14 972 Metric Fine ISO 2 (6H) DIN 371 C 977 Metric Fine ISO 2 (6H) DIN 371 C 15° helix Carbide bright finish 107 978 Metric Fine ISO 2 (6H) DIN 374 C 15° helix Carbide bright finish 107 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Blind hole taps Series Thread Type Color Ring Class of Fit Standard Chamfer Lead Helix Substrate Finish Page No. 2BX DIN 371 C 10° helix PM cobalt TiAlN coated 112 2BX DIN 371 C 15° helix PM cobalt TiCN coated 112 2BX DIN 371 C 10° helix PM cobalt TiAlN coated 112 2BX DIN 371 C 15° helix PM cobalt TiCN coated 112 6HX DIN 371 C 10° helix PM cobalt TiAlN coated 113 6HX DIN 371 C 15° helix PM cobalt TiCN coated 113 6HX DIN 371 C 10° helix PM cobalt TiAlN coated 113 6HX DIN 371 C 15° helix PM cobalt TiCN coated 113 UNC UNC 2912 UNC Ni Ti Index 2922 UNF 2923 UNF 2914 UNF Ni Ti METRIC 2920 Metric 2908 2909‡ Metric Ni Ti METRIC FINE 2921 Metric Fine Ni 2910 Metric Fine Ti ‡ Design change - Crossed out series numbers are being replaced with the numbers with this symbol: ‡ Form taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. UNC 3959 UNC 2BX ANSI E Cobalt TiN coated 122 3940 UNC 2BX ANSI C Cobalt TiN coated 122 3943 UNC 2BX ANSI C Cobalt TiCN coated 122 1582 UNC 2BX DIN 371 C Cobalt TiN coated 123 1583 UNC 2BX DIN 376 C Cobalt TiN coated 123 General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 15 Form taps Series ThreadType Color Ring Class of Fit Standard Chamfer Lead Substrate Finish Page No. Index UNF 3972 UNF 2BX ANSI E Cobalt TiN coated 124 3941 UNF 2BX ANSI C Cobalt TiN coated 123 3944 UNF 2BX ANSI C Cobalt TiCN coated 123 1584 UNF 2BX DIN 371 C Cobalt TiN coated 124 1585 UNF 2BX DIN 376 C Cobalt TiN coated 124 3979 Metric 6HX ANSI E Cobalt TiN coated 125 3939 Metric 6HX ANSI C Cobalt TiN coated 125 3942 Metric 6HX ANSI C Cobalt TiCN coated 125 1927 Metric 6HX DIN 371 E Carbide *TiCN coated 126 1972 Metric 6HX DIN 371 C Carbide *TiCN coated 126 1931 Metric 6HX DIN 376 C Carbide *TiCN coated 127 323 Metric 6HX DIN 371 C PM cobalt TiCN coated 126 1717 Metric 6HX DIN 371 C PM cobalt AlCrN 126 919 Metric 6HX DIN 371 C Cobalt TiN coated 126 342 Metric 6HX DIN 376 C PM cobalt TiN coated 127 1719 Metric 6HX DIN 376 C PM cobalt AlCrN 127 METRIC METRIC FINE 3975 Metric Fine 6HX ANSI C Cobalt TiN coated 127 1581 Metric Fine 6HX DIN 374 C Carbide *TiCN coated 129 1721 Metric Fine 6HX DIN 371 C PM cobalt AlCrN 129 338 Metric Fine 6HX DIN 374 C PM cobalt TiN coated 128 1723 Metric Fine 6HX DIN 374 C PM cobalt AlCrN 128 927 Metric Fine 6HX DIN 374 C Cobalt TiN coated 128 * All carbide form taps will be changing to TiCN coating as inventory levels are replenished 16 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Guhring Material Selection Tap Compass Index General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel For a complete description of workpiece materials and which color ring they fall under, please see the Tap Compass at the beginning of the catalog 17 Condition Tap Compass Material Form TiNi 1005, 1006, 1008, 1009, 1010, 1011, 1012, 1013, 1015, 1016, 1017, 1018, 1019, 1020, 1021, 1022, 1023, 1025, 1026, 1029 Tap Compass ™ Unalloyed Carbon Steels 1060, 1064, 1065, 1069, 1070, 1071, 1074, 1075, 1078, 1080, 1084, 1085, 1086, 1090, 1095 Low Carbon - ≤ 180 Hot rolled, Normalized, Annealed, Cold drawn ≤ 20 ≤ 230 Annealed, Cold drawn ≤ 30 ≤ 280 - ≤ 180 ≤ 20 ≤ 230 Annealed, Cold drawn, Quenched and Tempered ≤ 30 ≤ 280 Normalized, Annealed, Quenched and Tempered ≤ 35 ≤ 320 Quenched and Tempered ≤ 38 ≤ 350 Hot rolled, Normalized, Annealed, Cold drawn ≤ 38 ≤ 230 Hot rolled, Annealed, Cold drawn, Quenched and Tempered ≤ 20 ≤ 280 Normalized, Annealed, Quenched and Tempered ≤ 35 ≤ 320 Quenched and Tempered ≤ 38 ≤ 350 - ≤ 150 - ≤ 200 ≤ 25 ≤ 250 - ≤ 200 ≤ 25 ≤ 250 ≤ 33 ≤ 300 ≤ 38 ≤ 350 Hot rolled, Annealed - ≤ 150 Cold drawn - ≤ 200 - ≤ 180 ≤ 20 ≤ 230 ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤ 38 ≤ 350 10L10, 10L15, 10L17, 10L20, 10L23, 11L15, 11L16, 11L17, 12L11, 12L12, 12L13, 12L14, 12L15, 51L15, 1L17, 51L20 Hot rolled, Normalized, Annealed, Cold drawn Free Machining Leaded Steels Medium Carbon 10L25, 10L30, 10L35, 10L40, 10L42, 10L45, 10L49, 10L50, 10L55, 86L20, 86L40, 11L37, 11L38, 11L39, 11L41, 11L44, 11L46, 41L25, 41L30, 41L35, 41L40, 41L42, 41L47, 41L50 Cold drawn, Quenched and Tempered Low Carbon 1108, 1109, 1110, 1114, 1115, 1116, 1118, 1119, 1120, 1126, 1211, 1212, 1213, 1215 Hot rolled, Normalized, Annealed, Cold drawn Resulphurized Steels Medium Carbon 1132, 1137, 1138, 1139, 1140, 1141, 1144, 1145, 1146, 1151 Cold drawn, Quenched and Tempered COLOR RING Brinell Recommended Alternate(s) Normalized, Hot rolled, Annealed, Cold drawn Hot rolled, Normalized, Annealed, Cold Drawn 1030, 1033, 1035, 1037, 1038, 1039, 1040, 1042, 1043, 1044, 1045, 1046, 1049, 1050, 1053, 1055, 1059 Hardness HRC Quenched and Tempered 18 Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. Hardness Condition Material 1513, 1518, 1522 Normalized, Hot rolled, Annealed, Cold drawn - ≤ 180 Annealed, Cold drawn ≤ 20 ≤ 230 Hot rolled, Normalized, Annealed, Cold drawn ≤ 30 ≤ 280 - ≤ 180 ≤ 20 ≤ 230 Hot rolled, Annealed, Cold drawn, Normalized, Quenched and Tempered ≤ 30 ≤ 280 Normalized, Annealed, Quenched and Tempered ≤ 35 ≤ 320 Quenched and Tempered ≤ 38 ≤ 350 Hot rolled, Normalized, Annealed, Cold Drawn ≤ 20 ≤ 230 Hot rolled, Annealed, Cold drawn, Normalized, Quenched and Tempered ≤ 30 ≤ 280 Normalized, Annealed, Quenched and Tempered ≤ 35 ≤ 320 Quenched and Tempered ≤ 38 ≤ 350 Hot rolled, Normalized, Stress relieved - ≤ 150 - ≤ 200 ≤ 25 ≤ 250 ≤ 38 ≤ 300 ≤ 38 ≤ 350 - ≤ 180 ≤ 20 ≤ 230 ≤ 30 ≤ 280 - ≤ 180 ≤ 20 ≤ 230 Hot rolled, Cold drawn, Annealed, Normalized, Quenched and Tempered ≤ 30 ≤ 280 Normalized, Annealed, Quenched and Tempered ≤ 35 ≤ 320 Quenched and Tempered ≤ 38 ≤ 350 Hot rolled, Normalized, Annealed, Cold drawn Carbon Manganese Steels Medium Carbon High Carbon 1524, 1525, 1526, 1527, 1536, 1541 1547, 1548 (46Mn5), 1551 (52Mn4), 1552 (52Mn5), 1561, 1566 (66Mn4), 1572 (80Mn4) 30, 35, 42, 45, 50 55, 60, 65 Structural Steels Yield Strength in 1000 PSI 70, 75 , 80 Hot rolled, Normalized, Stress relieved, Quenched and Tempered 85, 90 , 100, 110 135, 140, 145, 150, 160 Low Carbon Manganese Steels 10B08, 10B15, 10B16, 10B21, 10B22, 10B23 Quenched and Tempered Normalized, Hot rolled, Annealed, Cold drawn Annealed, Cold drawn Boron Treated Steels Hot rolled, Normalized, Annealed, Cold drawn Medium Carbon Manganese Steels 10B30, 10B35, 10B37, 10B38, 10B39, 10B40, 10B41, 10B45, 10B50, 10B62, 13B20, 15B22, 15B47 Continues on next page General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys COLOR RING Brinell Recommended Alternate(s) Titanium or Nickel Tap Compass Low Carbon HRC 19 Condition Tap Compass Material Low Carbon Alloyed Steels 32B15, 41B18, 51B15, 51B17, 51B20, 86B20, 86B22, 94B15, 94B17 Medium Carbon Alloyed Steels 51B30, 51B32, 51B40, 51B55, 92B55, 50B40, 50B44, 50B46, 50B50, 50B60, 51B60, 81B45, 86B45, 94B30, 94B40 ≤ 20 ≤ 230 Hot rolled, Annealed, Cold drawn, Normalized ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤38 ≤ 350 Hot rolled, Annealed, Cold drawn ≤ 20 ≤ 230 Normalized, Cold drawn, Annealed, Quenched and Tempered ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤ 38 ≤ 350 Hot rolled, Annealed, Cold drawn ≤ 20 ≤ 230 Hot rolled, Normalized, Annealed, Cold drawn ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤38 ≤ 350 Hot rolled, Annealed, Cold drawn ≤ 20 ≤ 230 Annealed, Normalized, Cold drawn, Quenched and Tempered ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤ 38 ≤ 350 - ≤ 185 - ≤ 180 Annealed, Cold drawn ≤ 20 ≤ 230 Cold drawn ≤ 30 ≤ 280 - ≤ 180 ≤ 20 ≤ 230 ≤ 30 ≤ 280 ≤ 35 ≤ 320 ≤ 38 ≤ 350 Normalized, Quenched and Tempered Low Carbon 2317, 2512, 2515, 2517, 3115, 3120, 3215, 3220, 3312, 3316, 3325, 4012, 4023, 4024, 4027, 4028, 4118, 4119, 4125, 4317, 4320, 4419, 4422, 4427, 4608, 4615, 4617, 4620, 4621, 4626, 4718, 4720, 4815, 4817, 4820, 5015, 5115, 5117, 5120, 6115, 6118, 6120, 6125, 8115, 8615, 8617, 8620, 8622, 8625, 8627, 8720, 8822, 9310, 9315, 9317 Normalized, Quenched and Tempered COLOR RING Brinell Recommended Alternate(s) Hot rolled, Annealed, Cold drawn Normalized, Quenched and Tempered Boron Treated Steels Hardness HRC Alloy Steels Medium Carbon Ferritic 1330, 1335, 1340, 1345, 3140, 3145, 3150, 3230, 3240, 3335, 3340, 3435, 3450, 4032, 4037, 4063, 4130, 4135, 4137, 4140, 4142, 4145, 4147, 4150, 4161, 4337, 4340, 4640, 5045, 5046, 5060, 5130, 5132, 5135, 5140, 5145, 5157, 5150, 5155, 5160, 6130, 6135, 6140, 6145, 6150, 7140, 6145, 6150, 7140, 8630, 8632, 8635, 8637, 8640, 8642, 8645, 8650, 8650, 8660, 8735, 8740, 8742, 9250, 9254, 9255, 9260, 9262, 9840, 9850, 2340 Normalized, Quenched and Tempered 405, 409, 429, 430, 434, 436, 442, 446 Annealed Austenitic 201, 202, 301, 302B, 304, 304L, 305, 308, 309, 309S, 310, 310S, 314, 316, 316L, 317, 321, 330, 347, 348, 384, 385, Nitronic 32, Nitronic 33, Nitronic 40, Nitronic 50, Nitronic 60 Stainless Steels, Wrought Annealed Martensitic 1403, 410, 414, 420, 422, 431, 440A, 440B, 440C, 501, 502, Greek Ascoloy Quenched and Tempered Continues on next page 20 Detailed information about Guhring taps is also available on our website at www.guhring.com. 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Stainless Steels, Wrought 15-5PH, 16-6PH, 17-4PH, 17-7PH, 1714CuMo, AF-71, AFC-77, AM-363, AM363, AM350, AM355, Custom450, Custom 455, HNM, PH13-8 Mo, PH14-8 Mo, PH15-7Mo, Stainless W HRC COLOR RING Brinell Recommended Alternate(s) - ≤ 200 ≤ 25 ≤ 250 ≤ 33 ≤ 300 ≤ 38 ≤ 350 Annealed Tap Compass Precipitation Hardening Hardness Condition Material Hardened 430F, 430F Se Free Machining Stainless Steels 203 Ez, 303, 303 Se, 303 Ma, 303 Pb, 303 PlusX Annealed - Cold drawn ≤ 28 ≤ 270 Annealed - ≤ 180 Annealed, Cold drawn ≤ 23 ≤ 240 Quenched and Tempered ≤ 35 ≤ 320 ≤ 25 ≤ 250 - ≤ 220 ≤ 29 ≤ 270 - ≤ 200 ≤ 25 ≤ 250 ≤ 38 ≤ 350 - ≤ 200 ≤ 25 ≤ 250 - ≤ 220 - ≤ 150 - ≤ 200 ≤ 25 ≤ 250 ≤ 180 Medium Carbon 416, 416 Se, 416 PlusX, 420F, 420F Se, 440F, 440F Se M1, M2, M6, M10, T1, T2, T6 High Speed Steels M3-1, M3-2, M4, M7, M30, M33, M34, M36, M41, M42, M43, M44, M46, M47, T4, T5, T8, T15 Annealed H10, H11, H12, H13, H14, H19 Hot Works Quenched and Tempered H21, H22, H23, H24, H25, H26, H41, H42, H43 Tool Steels A7, D2, D3, D4, D5, D7 Cold Works A2, A3, A4, A5, A6, A8, A9, A10, O1, O2, O6, O7 Stock Resisting S1, S2, S4, S5, S6, S7 Mold P2, P3, P4, P5, P6, P20, P21 Special Purpose Annealed F1, F2, L2, L3, L6 Continues on next page General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel 21 Condition Material Tap Compass Water Hardening Nitriding Tool Steels COLOR RING Brinell Recommended Alternate(s) Annealed ≤ 25 ≤ 250 Normalized, Quenched and Tempered ≤ 30 ≤ 280 As cast, Annealed - ≤ 180 As cast ≤ 25 ≤ 250 As cast, Quenched and Tempered ≤ 35 ≤ 320 Annealed - ≤ 190 - ≤ 220 ≤ 25 ≤ 250 W1, W2, W5 Nitralloy 125, Nitralloy 135, Nitralloy 135Mod, Nitralloy 225, Nitralloy 230, Nitralloy EZ, Nitralloy N, Nitrex 1 ASTM SAE A159 G1800, A48 class 20 J431 G1800 A159 G2500, A48 class 25 J431 G2500 A159 G3000, A48 class 30, 25, 40 J431 G3000 A159 G3500, A48 class 45 Gray Cast Iron Hardness HRC A159 G4000, A48 class 50 J431 G3500 J431 G4000 A48 class 45 A48 class 55 A48 class 60 UNS ASTM SAE F32800 A536 60-40-18 J434 D4018 F33100 A536 65-45-12 J434 D4512 F33800 A536 80-55-06 J434 D5506 Ferritic Ductile Cast Iron High Alloy Cast Iron High Alloy Ductile Cast Iron Ferritic / Pearlitic DIN As cast GGG50, GGG60 Pearlitic / Martensitic F34800 A536 100-70-03 J434 D7003 GGG70 Normalized and Tempered ≤ 33 ≤ 300 Martensitic F36200 A536 120-90-02 J434 DQ&T GGG80 Quenched and Tempered ≤ 36 ≤ 330 - ≤ 220 - ≤ 215 ≤ 25 ≤ 250 - ≤ 200 ≤ 28 ≤ 270 Austenitic Austenitic UNS SAE F41000, F41001, F41006 A436 Type 1, A436 Type 1b, A436 Type 5 F41002, F41004, F41007 A436 Type 2, A436 Type 3, A436 Type 6 F41003, F41005 A436 Type 2b, A436 Type 4 UNS SAE F43000, F43002, F43004, F43006, F43007, F43010 A439 D2, A439 D2C, A439 D3A, A439 D5, A439 D5B, A571 D2M F43001, F43003, F43005 A439 D2B, A439 D3, A439 D4 As cast Annealed 22 Detailed information about Guhring taps is also available on our website at www.guhring.com. 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UNS Pearlitic F22830, F23130, F23530, F20001, F20002 - ≤ 160 - ≤ 200 ≤ 23 ≤ 240 ≤ 26 ≤ 255 ≤ 27 ≤ 260 ≤ 30 ≤ 280 ≤ 35 ≤ 320 Cold drawn - 30 to 80 500 kg Solution treated and Aged - 75 to 150 500 kg As cast - 40 to 100 500 kg Solution treated and Aged - 70 to 125 500 kg As cast - 40 to 100 500 kg Solution treated and Aged - 70 to 125 500 kg As cast - 40 to 100 500 kg Solution treated and Aged - 70 to 125 500 kg As cast - 40 to 100 500 kg Solution treated and Aged - 70 to 125 500 kg 99.5 - ≤ 170 99.2, 99.0, Ti-0.2Pd - ≤ 200 99.0, 98.0, Ti-02Pd ≤ 29 ≤ 275 ≤ 37 ≤ 340 Ti-6AI-4V, Ti-6AI-4V ELI ≤ 38 ≤ 350 Ti-5AI-2Sn-2Zr-4Mo-4Cr (Ti-17), Ti-6AI-6V-2Sn, Ti-7AI-4Mo, Ti-8AI-1Mo-1V ≤ 40 ≤ 370 Ti-1AI-8V-5Fe ≤ 41 ≤ 380 Malleable Cast Iron Al Alloys, Wrought Low Silicon ≤ 7% 7-10% Silicon Aluminum Die Casting 7-14% Silicon F20003, F2410, F20004, F25530 A140, 201.0, 208.0, 213.0, 222.0, 224.0, 242.0, 295.0, B295.0, 308.0, 319.0, 328.0, A332.0, F332.0, 333.0, 354.0, 355.0, C355.0, 356.0, A356.0, 357.0, 359.0, B443.0, 514.0, A514.0, 520.0, 535.0, 705.0, 707.0, A712.0, D712.0, 713.0, 771.0, 8500, A850.0, B850.0 Alloyed & Unalloyed Steels Malleablized and Heat Treated 383.0, A384.0, 413.0, A413.0 390.0, 392.0 Ti-8Mn, Ti2AI-11Sn-5Zr-1Mo, Ti-5AI-2, 5Sn ELI, Ti-5AI-6Sn-2Zr-1Mo, Ti-6AI-2Cb-1Ta-0.8Mo, Ti-6A1-2Sn-4Zr-2Mo, Ti-6AI-2Sn-4Zr-2Mo-.25Si, Ti-6AI-2Sn-4Zr-6Mo Alpha and Alpha-Beta Alloys Malleablized 360.0, A360.0, 380.0, A380.0, C443.0, 518.0 Commercially Pure General Purpose A602 G M5503, J158 G M5503, A220 G 60004, A602 G M7002, J158 G M7002, A220 G 70003, A220 G 80002, A602 G M8501, J158 G M8501, A220 G 90001 EC 1060, 1100, 1145, 1175, 1235, 2011, 2014, 2017, 2018, 2021, 2024, 2025, 2117, 2218, 2219, 2618, 3003, 3004, 3005, 4032, 5005, 5050, 5052, 5056, 5083, 5086, 5154, 5252, 5254, 5454, 5456, 5457, 5652, 5657, 6053, 6061, 6063, 6066, 6070, 6101, 6151, 6253, 6262, 6463, 6951, 7001, 7004, 7005, 7039, 7049, 7050, 7075, 7079, 7175, 7178 ≤ 14% Silicon Titanium Alloys, Wrought A602 G M3210, J158 G M3210, A47 G 32510, A47 G 3201 A220 G 40010, J125 pearlitic malleable, A220 G 45006, A220 G 45008, A220 G 50005, A602 G M4504, J158 G M4504, A602 G M5003, J158 G M5003 COLOR RING Brinell Recommended Alternate(s) Tap Compass F20000 Al Alloys, Wrought HRC ASTM / SAE Ferritic Martensitic Hardness Condition Material Stainless Steels High Tensile, Tool Steels Annealed Cast Iron Aluminum and Alloys Titanium or Nickel 23 Condition Tap Compass Material Alpha and Alpha-Beta Alloys Titanium Alloys, Wrought Beta Alloys Commercially Pure Titanium Alloys, Cast Chromium-Nickel Nickel Alloys, Cast Ti-6AI-4V, Ti-6AI-4V ELI, Ti-6AI-2Sn-4Zr-2Mo, Ti-6AI-2Sn-4Zr-2Mo-.2Si, Ti-6AI-2Sn-4Zr-6Mo Ti-1AI-8V-5Fe, Ti-3AI-2.5V, Ti-5AI-2Sn-2Zr-4Mo-4Cr (Ti-17), Ti-6AI-6V-2Sn, Ti-7AI-4Mo Ti-3AI-8V-6Cr-4Mo-4Zr, Ti-8Mo-8V-2Fe-3AI, Ti-11.5Mo-6Zr-4.5Sn, Ti-10-2Fe-3AI, Ti-13V-11Cr-3AI ≤ 380 ≤ 46 ≤ 440 Annealed or Solution treated ≤ 38 ≤ 350 Solutions treated and Aged ≤ 46 ≤ 440 - ≤ 200 <25 ≤ 250 <35 ≤ 320 < 38 ≤ 350 Solutions treated and Aged As Cast, As Cast and Annealed Alpha and Alpha-Beta Alloys Ti-5AI-2Sn, Ti-6AI-4V, Ti-6AI-2Sn-4Zr-2Mo, Ti-8AI-1Mo-1V, ASMT B367 Grades C-5, C-6 Alpha and Alpha-Beta Alloys A560 ² 40 ² 375 Grade 50Cr-50Ni, 60Cr-40Ni As Cast ≤ 41 ≤ 375 Nickel 200, Nickel 201, Nickel 205, Nickel 211, Nickel 220, Nickel 230 Anneald, Cold drawn - ≤ 170 MONEL Alloy 400, MONEL Alloy 401, MONEL Alloy 404, MONEL Alloy R405; A2996 Grades CZ-100, M-35; A494 Grades CZ-100, M-35 Anneald, Cold drawn, As Cast ≤ 25 ≤ 250 Incoloy Alloys, Inconel Alloys, Hastelloy Alloys, Rene, DURANICKEL Alloy 301, MONEL Alloy 502, MONEL Alloy K500, NI-SPAN-C Alloy 902, PERMANICKEL Alloy 300 Solution treated ≤ 35 ≤ 320 Aged ≤ 39 ≤ 360 Wrought and Cast COLOR RING Brinell Recommended Alternate(s) ≤ 41 99.0, Ti-0.2Pd, ASMT B367 Grades C-1, C-2, C-7A, C-7B 99.0, Ti-0.2Pd, ASMT B367 Grades C-3, C-4, C-8A, C-8B Hardness HRC Magnesium Alloys Wroght and Cast Magnesium As Cast -- ≤ 150 Copper Alloys Wroght and Cast C10100, C27000, C71500, C52400, C77000, C17200, C71500, C95500, C86500, Beryllium Copper Annealed, Cold drawn -- ≤ 120 Brass Wroght and Cast CUZn10, CUZn20, 836, 838, Red Brass, Yellow Brass Annealed, Cold drawn, As Cast -- ≤ 180 Phosphor Bronze C5xxxx Spring tempered ≤ 24 ≤ 245 Aluminum Bronze C60600, C64200, 952, 953 Annealed, Cold drawn ≤ 200 Manganese Bronze 862, 863, 865 Annealed, Cold drawn ≤ 225 Silicon Bronze C64700, C66100, 878 As Cast ≤ 115 Bronze Plastics Thermoplastics, Duroplastics -- -- 24 Detailed information about Guhring taps is also available on our website at www.guhring.com. 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Material Hardness & Tensile Strength Cross-Reference Chart* Brinell Vickers 76 80.7 85.5 90.2 95 98.8 105 109 114 119 124 128 133 138 143 147 152 156 162 166 171 176 181 185 190 195 199 204 209 214 219 223 228 233 238 242 247 252 257 261 266 271 276 280 285 295 304 314 323 333 342 352 361 371 380 390 399 409 418 428 437 447 456 463 475 485 494 504 513 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 205 210 215 220 225 230 235 240 245 250 255 260 265 270 275 280 285 290 295 300 310 320 330 340 350 360 370 380 390 400 410 420 430 440 450 460 470 480 490 500 510 520 530 540 Rockwell HRB HRC PSI 41.0 48.0 52.0 58.2 62.3 66.7 71.2 75.0 78.7 81.7 85.0 87.1 89.5 91.6 92.6 93.5 94.0 95.0 96.0 96.7 98.1 99.5 101 102 104 105 20.3 21.3 22.2 23.1 24.0 24.8 25.6 26.4 27.1 27.8 28.5 29.2 29.8 31.0 32.2 33.3 34.4 35.5 36.6 37.7 38.8 39.8 40.8 41.8 42.7 43.6 44.5 45.3 46.1 46.9 47.7 48.4 49.1 49.8 50.5 51.1 51.7 57,000 59,000 61,000 63,000 66,000 68,000 70,000 72,000 73,000 74,000 79,000 81,000 83,000 86,000 88,000 90,000 91,000 92,000 95,000 98,000 102,000 105,000 107,000 109,000 111,000 113,000 116,000 118,000 122,000 124,000 126,000 129,000 131,000 134,000 138,000 139,000 142,000 146,000 150,000 154,000 159,000 164,000 169,000 176,000 181,000 185,000 191,000 198,000 202,000 205,000 208,000 212,000 219,000 225,000 232,000 235,000 238,000 245,000 250,000 254,000 259,000 TENSILE STRENGTH HARDNESS Brinell Vickers 523 532 542 551 561 570 580 589 599 608 618 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 720 740 760 780 800 820 840 860 880 900 920 940 Rockwell HRB HRC 52.3 53.0 53.6 54.1 54.7 55.2 55.7 56.3 56.8 57.3 57.8 58.3 58.8 59.2 59.7 60.1 61.0 61.8 62.5 63.3 64.0 64.7 65.3 65.9 66.4 67.0 67.5 68.0 PSI Tap Compass TENSILE STRENGTH HARDNESS 264,000 269,000 274,000 279,000 284,000 287,000 292,000 294,000 304,000 310,000 315,000 326,000 * Figures listed are approximate. Actual comversoins may vary by material and alloy content. PSI (pound / in2) = N/mm2 x 145.0377 N/mm2 = pound / in2 ÷ 145.0377 25 26 Cut Taps General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel 27 YELLOW RING CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E HSS-E-PM bright finish hard coated bright finish hard coated 30-50 40-70 50-70 55-95 Unalloyed case hardened steels 20-40 30-70 40-65 40-80 Unalloyed heat-treatable steels <25 15-35 25-50 30-60 35-75 Structural steels, free-cutting steels General Purpose ANSI length - ANSI shank UNC Series 3901 - Cobalt, UNC, spiral point, bright finish Series 3961 - Cobalt, UNC, spiral point, MolyGlide® coated 2B Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 No. Shank dia. Square Size Select Overall Length 2B Approx. Series Series Order Size Flutes inch inch inch Limits 3901 3961 No. 4-40 3 0.141 0.110 1.882 H2/H3 5-40 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 DIN 371 DIN 376 Approx. Series Series 878 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 3 0.367 0.275 3.381 H5/H6 9/16-12 3 0.429 0.322 3.591 H5/H6 5/8-11 3 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 DIN length - DIN shank Series 873 - Cobalt, UNC, spiral point, bright finish, DIN 371 Series 878 - Cobalt, UNC, spiral point, bright finish, DIN 376 No. 30 Bright Shank dia. Square Size Overall Length 2B Size Flutes mm mm mm Limits 873 2-56 3 2.800 2.100 45.000 H2/H3 3-48 3 2.800 2.100 50.000 H2/H3 4-40 3 3.500 2.700 56.000 H2/H3 5-40 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 12-24 3 6.000 4.900 80.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H4/H5 l l l l l l l l l l l 3/8-16 3 9.000 7.000 100.000 H5/H6 7/16-14 3 8.000 6.200 100.000 H5/H6 1/2-13 3 9.000 7.000 110.000 H5/H6 9/16-12 3 11.000 9.000 110.000 H5/H6 5/8-11 3 12.000 9.000 110.000 H5/H6 3/4-10 4 14.000 11.000 125.000 H5/H6 7/8-9 4 18.000 14.500 140.000 H6/H7 1-8 4 18.000 14.500 160.000 H6/H7 1 1/4-7 4 22.000 18.000 180.000 H7/H8 1 1/2-6 4 32.000 24.000 200.000 H7/H8 Steam Oxide TiN TiCN MolyGlide TiAlN Order No. 2.184 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 l l ° l ° l ° l ° AlCrN 11.113 12.700 14.288 15.875 19.050 22.225 25.400 31.750 38.100 FIREX® General Purpose ANSI length - ANSI shank Select Series 3902 - Cobalt, UNF, spiral point, bright finish Series 3962 - Cobalt, UNF, spiral point, MolyGlide® coated UNF 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3902 3962 No. 4-48 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 12-28 3 0.220 0.165 2.382 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-44 Approx. Series Series Order 3 0.255 0.191 2.500 H3/H4 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 9/16-18 3 0.429 0.322 3.591 H4/H5 5/8-18 3 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 3.175 3.505 4.166 4.826 Through Hole 5.486 6.350 7.938 Cut Taps 1/4-28 5/16-24 2B Class of Fit 0° Helix 9.525 11.113 12.700 14.288 Plug Tap Chamfer Lead 15.875 19.050 22.225 25.400 B · 3.5 - 5 DIN length - DIN shank Series 908 - Cobalt, UNF, spiral point, bright finish, DIN 374 Size 2B DIN 374 No. Shank dia. Square Size Overall Length Approx. Series Order Flutes mm mm mm Limits 908 No. ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° 2.845 4-48 3 2.200 n.a. 56.000 H2/H3 5-44 3 2.500 2.100 56.000 H2/H3 6-40 3 2.500 2.100 56.000 H2/H3 8-36 3 2.800 2.100 63.000 H2/H3 10-32 3 3.500 2.700 70.000 H3/H4 12-28 3 4.000 3.000 80.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 5/16-24 3 6.000 4.900 90.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 7/16-20 3 8.000 6.200 90.000 H4/H5 1/2-20 3 9.000 7.000 100.000 H4/H5 9/16-18 3 11.000 9.000 100.000 H4/H5 5/8-18 3 12.000 9.000 100.000 H4/H5 3/4-16 4 14.000 11.000 110.000 H5/H6 7/8-14 4 18.000 14.500 125.000 H6/H7 1 1/8-12 4 22.000 18.000 150.000 H6/H7 1 1/4-12 4 22.000 18.000 150.000 H6/H7 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 28.575 31.750 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 31 General Purpose ANSI length - ANSI shank METRIC Series 3900 - Cobalt, Metric, spiral point, bright finish Series 3960 - Cobalt, Metric, spiral point, MolyGlide® coated ISO2 (6H) Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 No. Shank dia. Square Size Overall Length Size Flutes inch inch M2 X 0.40 3 0.141 M3 X 0.50 3 0.141 M4 X 0.70 3 M5 X 0.80 Bright ISO2 (6H) Approx. Series Series Order inch Limits 3900 3960 No. 0.110 1.752 D2/D3 1.941 D2/D3 0.168 0.131 2.130 D3/D4 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 3 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 l l l l l l l l l l l l l l l l l l l l l l l l 2.000 0.110 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 DIN length - DIN shank Series 803 - Cobalt, Metric, spiral point, bright finish, DIN 371 No. 32 Select Shank dia. Square Size Overall Length ISO2 (6H) DIN 371 Approx. Series Order Size Flutes mm mm mm Limits 803 No. M1.4 X 0.30 2 2.500 2.100 40.000 D2/D3 M1.6 X 0.35 2 2.500 2.100 40.000 D2/D3 M1.7 X 0.35 2 2.500 2.100 40.000 D2/D3 M1.8 X 0.35 2 2.500 2.100 40.000 D2/D3 M2 X 0.40 3 2.800 2.100 45.000 D2/D3 M2.2 X 0.45 3 2.800 2.100 45.000 D2/D3 M2.3 X 0.40 3 2.800 2.100 45.000 D2/D3 M2.5 X 0.45 3 2.800 2.100 50.000 D2/D3 l ° l ° l ° ° l ° ° l l l l l l l 1.400 M2.6 X 0.45 3 2.800 2.100 50.000 D2/D3 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 M3.5 X 0.60 3 4.000 3.000 56.000 D3/D4 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M7 X 1.00 3 7.000 5.500 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 1.600 1.700 1.800 2.000 2.200 2.300 2.500 2.600 3.000 3.500 4.000 5.000 6.000 7.000 8.000 10.000 FIREX® General Purpose DIN length - DIN shank Series 815 - Cobalt, Metric, spiral point, bright finish, DIN 376 No. Shank dia. Square Size Overall Length ISO2 (6H) METRIC DIN 376 Approx. Series Order Size Flutes mm mm mm Limits 815 No. M1.6 x 0.35 2 1.200 n.a. 40.000 D2/D3 M1.8 x 0.35 2 1.200 n.a. 40.000 D2/D3 M2 x 0.40 3 1.400 n.a. 45.000 D2/D3 M2.5 x 0.45 3 1.800 n.a. 50.000 D2/D3 M2.6 x 0.45 3 1.800 n.a. 50.000 D2/D3 M3 x 0.50 3 2.200 n.a. 56.000 D2/D3 ° ° ° l ° l l l l l l l l l ° ° l l l ° ° ° l 1.600 3 2.500 2.100 56.000 D3/D4 M4 x 0.70 3 2.800 2.100 63.000 D3/D4 M5 x 0.80 3 3.500 2.700 70.000 D3/D4 M6 x 1.00 3 4.500 3.400 80.000 D4/D5 M7 x 1.00 3 5.500 4.300 80.000 D4/D5 M8 x 1.25 3 6.000 4.900 90.000 D4/D5 M10 x 1.50 3 7.000 5.500 100.000 D4/D5 M12 x 1.75 3 9.000 7.000 110.000 D5/D6 M14 x 2.00 3 11.000 9.000 110.000 D5/D6 M16 x 2.00 3 12.000 9.000 110.000 D6/D7 M18 x 2.50 4 14.000 11.000 125.000 D6/D7 M20 x 2.50 4 16.000 12.000 140.000 D6/D7 M22 x 2.50 4 18.000 14.500 140.000 D6/D7 M24 x 3.00 4 18.000 14.500 160.000 D7/D8 M27 x 3.00 4 20.000 16.000 160.000 D7/D8 M30 x 3.50 4 22.000 18.000 180.000 D8/D9 M36 x 4.00 4 28.000 22.000 200.000 D8/D9 1.800 2.000 2.500 2.600 Through Hole 3.000 Cut Taps M3.5 x 0.60 ISO2 (6H) Class of Fit 3.500 4.000 0° Helix 5.000 6.000 7.000 8.000 Plug Tap Chamfer Lead 10.000 12.000 14.000 16.000 18.000 B · 3.5 - 5 20.000 22.000 24.000 27.000 30.000 36.000 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 33 General Purpose DIN length - DIN shank METRIC FINE Cut Taps ISO2 (6H) Class of Fit Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 34 Bright Series 827 - Cobalt, Metric Fine, spiral point, bright finish, DIN 374 No. Shank dia. Square Size Overall Length ISO2 (6H) DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 827 No. M3 x 0.35 M3.5 x 0.35 3 3 2.200 2.500 n.a. 2.100 56.000 56.000 D2/D3 D3/D4 M4 x 0.50 3 2.800 2.100 63.000 D3/D4 M5 x 0.50 3 3.500 2.700 70.000 D3/D4 M6 x 0.50 3 4.500 3.400 80.000 D3/D4 M6 x 0.75 3 4.500 3.400 80.000 D3/D4 M7 x 0.75 3 5.500 4.300 80.000 D3/D4 M8 x 0.50 3 6.000 4.900 80.000 D3/D4 M8 x 0.75 3 6.000 4.900 80.000 D3/D4 M8 x 1.00 3 6.000 4.900 90.000 D4/D5 M9 x 1.00 3 7.000 5.500 90.000 D4/D5 M10 x 0.75 3 7.000 5.500 90.000 D4/D5 M10 x 1.00 3 7.000 5.500 90.000 D4/D5 M10 x 1.25 3 7.000 5.500 100.000 D4/D5 M11 x 1.00 3 8.000 6.200 90.000 D4/D5 M12 x 1.00 3 9.000 7.000 100.000 D4/D5 M12 x 1.25 3 9.000 7.000 100.000 D4/D5 M12 x 1.50 3 9.000 7.000 100.000 D5/D6 M14 x 1.00 3 11.000 9.000 100.000 D4/D5 M14 x 1.25 3 11.000 9.000 100.000 D4/D5 M14 x 1.50 3 11.000 9.000 100.000 D4/D5 M15 x 1.00 3 12.000 9.000 100.000 D4/D5 M15 x 1.50 3 12.000 9.000 100.000 D4/D5 M16 x 1.00 3 12.000 9.000 100.000 D4/D5 M16 x 1.50 3 12.000 9.000 100.000 D4/D5 M18 x 1.00 4 14.000 11.000 110.000 D4/D5 M18 x 1.50 4 14.000 11.000 110.000 D4/D5 M18 x 2.00 4 14.000 11.000 125.000 D6/D7 M20 x 1.00 4 16.000 12.000 125.000 D6/D7 M20 x 1.50 4 16.000 12.000 125.000 D6/D7 M20 x 2.00 4 16.000 12.000 140.000 D6/D7 M22 x 1.00 4 18.000 14.500 125.000 D6/D7 M22 x 1.50 4 18.000 14.500 125.000 D6/D7 M22 x 2.00 4 18.000 14.500 140.000 D6/D7 M24 x 1.00 4 18.000 14.500 140.000 D6/D7 M24 x 1.50 4 18.000 14.500 140.000 D6/D7 M24 x 2.00 4 18.000 14.500 140.000 D6/D7 M26 x 1.50 4 18.000 14.500 140.000 D7/D8 M27 x 1.50 4 20.000 16.000 140.000 D7/D8 M27 x 2.00 4 20.000 16.000 140.000 D7/D8 M28 x 1.50 4 20.000 16.000 140.000 D7/D8 M30 x 1.50 4 22.000 18.000 150.000 D7/D8 M30 x 2.00 4 22.000 18.000 150.000 D7/D8 M32 x 1.50 4 22.000 18.000 150.000 D7/D8 M33 x 1.50 4 25.000 20.000 160.000 D7/D8 M35 x 1.50 M36 x 1.50 4 4 28.000 28.000 22.000 22.000 170.000 170.000 D8/D9 D8/D9 l l l l l l l l l l l l l l l l l l l l l ° ° l l l l l l l l ° ° ° ° ° l l ° ° ° l l ° ° l ° 3.002 3.502 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 4.003 5.003 6.003 6.004 7.004 8.003 8.004 8.005 9.005 10.004 10.005 10.006 11.005 12.005 12.006 12.007 14.005 14.006 14.007 15.005 15.007 16.005 16.007 18.005 18.007 18.008 20.005 20.007 20.008 22.005 22.007 22.008 24.005 24.007 24.008 26.007 27.007 27.008 28.007 30.007 30.008 32.007 33.007 35.007 36.007 FIREX® General Purpose DIN length - DIN shank Series 830 - Cobalt, Metric Fine, straight flute, bright finish, DIN 374 No. Shank dia. Square Size Overall Length ISO2 (6H) DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 830 No. M3 x 0.35 M3.5 x 0.35 3 3 2.200 2.500 2.100 56.000 56.000 D2/D3 D3/D4 M4 x 0.50 3 2.800 2.100 63.000 D3/D4 M5 x 0.50 3 3.500 2.700 70.000 D3/D4 M6 x 0.50 3 4.500 3.400 80.000 D3/D4 M6 x 0.75 3 4.500 3.400 80.000 D3/D4 M7 x 0.75 3 5.500 4.300 80.000 D3/D4 M8 x 0.50 3 6.000 4.900 80.000 D3/D4 M8 x 0.75 3 6.000 4.900 80.000 D3/D4 M8 x 1.00 3 6.000 4.900 90.000 D4/D5 M9 x 1.00 3 7.000 5.500 90.000 D4/D5 M10 x 0.75 3 7.000 5.500 90.000 D4/D5 M10 x 1.00 3 7.000 5.500 90.000 D4/D5 M10 x 1.25 3 7.000 5.500 100.000 D4/D5 M11 x 1.00 3 8.000 6.200 90.000 D4/D5 M12 x 1.00 3 9.000 7.000 100.000 D4/D5 M12 x 1.25 3 9.000 7.000 100.000 D4/D5 M12 x 1.50 3 9.000 7.000 100.000 D5/D6 M14 x 1.00 3 11.000 9.000 100.000 D4/D5 M14 x 1.25 3 11.000 9.000 100.000 D4/D5 M14 x 1.50 3 11.000 9.000 100.000 D4/D5 M15 x 1.00 3 12.000 9.000 100.000 D4/D5 M16 x 1.00 3 12.000 9.000 100.000 D4/D5 M16 x 1.50 3 12.000 9.000 100.000 D4/D5 M18 x 1.00 4 14.000 11.000 110.000 D4/D5 M18 x 1.50 4 14.000 11.000 110.000 D4/D5 M18 x 2.00 4 14.000 11.000 125.000 D6/D7 M20 x 1.00 4 16.000 12.000 125.000 D6/D7 M20 x 1.50 4 16.000 12.000 125.000 D6/D7 M20 x 2.00 4 16.000 12.000 140.000 D6/D7 M22 x 1.00 4 18.000 14.500 125.000 D6/D7 M22 x 1.50 4 18.000 14.500 125.000 D6/D7 M24 x 1.00 4 18.000 14.500 140.000 D6/D7 M24 x 1.50 4 18.000 14.500 140.000 D6/D7 M24 x 2.00 4 18.000 14.500 140.000 D6/D7 M26 x 1.50 4 18.000 14.500 140.000 D7/D8 M27 x 1.50 4 20.000 16.000 140.000 D7/D8 M27 x 2.00 4 20.000 16.000 140.000 D7/D8 M28 x 1.50 4 20.000 16.000 140.000 D7/D8 M30 x 1.50 4 22.000 18.000 150.000 D7/D8 M30 x 2.00 4 22.000 18.000 150.000 D7/D8 M32 x 1.50 4 22.000 18.000 150.000 D7/D8 M35 x 1.50 6 28.000 22.000 170.000 D8/D9 M36 x 1.50 M38 x 1.50 6 6 28.000 28.000 22.000 22.000 170.000 170.000 D8/D9 D8/D9 ° ° ° l ° l ° ° ° ° ° ° l l ° l l l ° l ° ° ° l ° ° ° ° l ° ° ° ° l l ° ° l ° l ° ° ° ° l 3.002 3.502 METRIC FINE ISO2 (6H) Class of Fit 4.003 5.003 6.003 6.004 8.003 Through or Blind Hole Cut Taps 7.004 8.004 8.005 0° Helix 9.005 10.004 10.005 10.006 11.005 Chamfer Lead 12.005 12.006 12.007 14.005 C·2-3 14.006 14.007 15.005 16.005 16.007 18.005 18.007 18.008 20.005 20.007 20.008 22.005 22.007 24.005 24.007 24.008 26.007 27.007 27.008 28.007 30.007 30.008 32.007 35.007 36.007 38.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 35 General Purpose ANSI length - ANSI shank UNC 2B Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 Select Series 3904 - Cobalt, UNC, 40° helix, bright finish Series 3964 - Cobalt, UNC, 40° helix, MolyGlide® coated No. Shank dia. Square Size Overall Length 2B Approx. Series Series Order Size Flutes inch inch inch Limits 3904 3964 No. 4-40 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 l l l l l l l l l l l l l l l l 2.845 5-40 l l l l l l l l l l l l l l l l DIN 371 DIN 376 Approx. Series Series 881 1/2-13 3 0.367 0.275 3.381 H5/H6 9/16-12 3 0.429 0.322 3.591 H5/H6 5/8-11 3 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 DIN length - DIN shank Series 876 - Cobalt, UNC, 40° helix, bright finish, DIN 371 Series 881 - Cobalt, UNC, 40° helix, bright finish, DIN 376 No. 36 Bright Shank dia. Square Size Overall Length 2B Size Flutes mm mm mm Limits 876 2-56 3 2.800 2.100 45.000 H2/H3 4-40 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H4/H5 3/8-16 3 9.000 7.000 100.000 H5/H6 l l l l l l l l 7/16-14 3 8.000 6.200 100.000 H5/H6 1/2-13 3 9.000 7.000 110.000 H5/H6 9/16-12 3 11.000 9.000 110.000 H5/H6 5/8-11 3 12.000 9.000 110.000 H5/H6 3/4-10 4 14.000 11.000 125.000 H5/H6 7/8-9 4 18.000 14.500 140.000 H6/H7 1-8 4 18.000 14.500 160.000 H6/H7 Steam Oxide TiN TiCN MolyGlide TiAlN Order No. 2.184 2.845 3.505 4.166 4.826 6.350 7.938 9.525 ° l l ° l l ° AlCrN 11.113 12.700 14.288 15.875 19.050 22.225 25.400 FIREX® General Purpose ANSI length - ANSI shank Select Series 3905 - Cobalt, UNF, 40° helix, bright finish Series 3965 - Cobalt, UNF, 40° helix, MolyGlide® coated No. Shank dia. Square Size UNF 2B Overall Length Approx. Series Series Order Size Flutes inch inch inch Limits 3905 3965 No. 4-48 3 0.141 0.110 1.882 H2/H3 5-44 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 3 0.220 0.165 2.382 H3/H4 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 9/16-18 3 0.429 0.322 3.591 H4/H5 5/8-18 3 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 3.175 3.505 4.166 Blind Hole 4.826 5.486 6.350 Cut Taps 12-28 1/4-28 2B Class of Fit 40° Helix 7.938 9.525 11.113 12.700 Semi-bottoming Chamfer Lead 14.288 15.875 19.050 22.225 25.400 C · 2-3 DIN length - DIN shank Series 911 - Cobalt, UNF, 40° helix, bright finish, DIN 374 No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 911 No. 3-56 3 1.800 na 50.000 H2/H3 2.515 4-48 3 2.200 na 56.000 H2/H3 5-44 3 2.500 2.100 56.000 H2/H3 6-40 3 2.500 2.100 56.000 H2/H3 ° ° ° ° l l l ° l l ° l ° l l 8-36 3 2.800 2.100 63.000 H2/H3 10-32 3 3.500 2.700 70.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 5/16-24 3 6.000 4.900 90.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 7/16-20 3 8.000 6.200 90.000 H4/H5 1/2-20 3 9.000 7.000 100.000 H4/H5 9/16-18 3 11.000 9.000 100.000 H4/H5 5/8-18 3 12.000 9.000 100.000 H4/H5 3/4-16 4 14.000 11.000 110.000 H5/H6 7/8-14 4 18.000 14.500 125.000 H6/H7 2.845 3.175 3.505 4.166 4.826 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 37 General Purpose ANSI length - ANSI shank METRIC ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead Select Series 3903 - Cobalt, Metric, 40° helix, bright finish Series 3963 - Cobalt, Metric, 40° helix, MolyGlide® coated No. Shank dia. Square Size Overall Length Size Flutes inch inch M2 X 0.40 3 0.141 M3 X 0.50 3 0.141 M4 X 0.70 3 M5 X 0.80 ISO2 (6H) Approx. Series Series Order inch Limits 3903 3963 No. 0.110 1.752 D2/D3 1.941 D2/D3 0.168 0.131 2.130 D3/D4 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 3 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 l l l l l l l l l l l l l l l l l l l l l l l l 2.000 0.110 DIN 376 DIN 371 Approx. Series Series 822 810 No. l l ° l ° ° l l l l l l 2.000 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 DIN length - DIN shank Series 822 - Cobalt, Metric, 40° helix, bright finish, DIN 376 Series 810 - Cobalt, Metric, 40° helix, bright finish, DIN 371 C · 2-3 No. 38 Bright Shank dia. Square Size Overall Length ISO2 (6H) Size Flutes mm mm mm Limits M2 x 0.40 3 2.800 2.100 45.000 D2/D3 M2.2 x 0.45 3 2.800 2.100 45.000 D2/D3 M2.3 x 0.40 3 2.800 2.100 45.000 D2/D3 M2.5 x 0.45 3 2.800 2.100 50.000 D2/D3 M2.6 x 0.45 3 2.800 2.100 50.000 D2/D3 M3 x 0.50 3 3.500 2.700 56.000 D2/D3 M3.5 x 0.60 3 4.000 3.000 56.000 D3/D4 M4 x 0.70 3 4.500 3.400 63.000 D3/D4 M5 x 0.80 3 6.000 4.900 70.000 D3/D4 M6 x 1.00 3 6.000 4.900 80.000 D4/D5 M8 x 1.25 3 8.000 6.200 90.000 D4/D5 M10 x 1.50 3 10.000 8.000 100.000 D4/D5 M3 x 0.50 3 2.200 n.a. 56.000 D2/D3 M3.5 x 0.60 3 2.500 2.100 56.000 D3/D4 M4 x 0.70 3 2.800 2.100 63.000 D3/D4 M5 x 0.80 3 3.500 2.700 70.000 D3/D4 M6 x 1.00 3 4.500 3.400 80.000 D4/D5 M7 x 1.00 3 5.500 4.300 80.000 D4/D5 M8 x 1.25 3 6.000 4.900 90.000 D4/D5 M10 x 1.50 3 7.000 5.500 100.000 D4/D5 M12 x 1.75 3 9.000 7.000 110.000 D5/D6 M14 x 2.00 3 11.000 9.000 110.000 D5/D6 M16 x 2.00 3 12.000 9.000 110.000 D6/D7 M18 x 2.50 4 14.000 11.000 125.000 D6/D7 Steam Oxide TiN TiCN MolyGlide TiAlN ° ° l l ° l l l ° l l l Order 2.200 2.300 2.500 2.600 3.000 3.500 4.000 5.000 6.000 8.000 10.000 3.000 3.500 4.000 5.000 6.000 7.000 8.000 10.000 12.000 14.000 16.000 18.000 AlCrN FIREX® General Purpose DIN length - DIN shank (cont’d) Series 822 - Cobalt, Metric, 40° helix, bright finish, DIN 376 Series 810 - Cobalt, Metric, 40° helix, bright finish, DIN 371 Size No. Shank dia. Square Size Overall Length Flutes mm mm mm DIN 376 DIN 371 Approx. Series Series Order Limits 822 810 No. ° l ° ° ° ISO2 (6H) M20 x 2.50 4 16.000 12.000 140.000 D6/D7 M22 x 2.50 4 18.000 14.500 140.000 D6/D7 M24 x 3.00 4 18.000 14.500 160.000 D7/D8 M27 x 3.00 4 20.000 16.000 160.000 D7/D8 M30 x 3.50 4 22.000 18.000 180.000 D8/D9 20.000 22.000 METRIC / METRIC FINE ISO2 (6H) Class of Fit 24.000 27.000 30.000 Cut Taps Blind Hole DIN length - DIN shank Series 834 - Cobalt, Metric Fine, 40° helix, bright finish, DIN 374 Series 833 - Cobalt, Metric Fine, 15° helix, bright finish, DIN 374 40° Helix 15° Helix DIN 374 DIN 374 Approx. Series Series Order 833 No. ISO2 (6H) No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 834 M3 x 0.35 3 2.200 n.a. 56.000 D2/D3 ° ° ° ° l ° ° ° ° ° l l l ° l l ° l l ° M3.5 x 0.35 3 2.500 2.100 56.000 D3/D4 M4 x 0.50 3 2.800 2.100 63.000 D3/D4 M5 x 0.50 3 3.500 2.700 70.000 D3/D4 M6 x 0.50 3 4.500 3.400 80.000 D3/D4 M6 x 0.75 3 4.500 3.400 80.000 D3/D4 M8 x 0.75 3 6.000 4.900 80.000 D3/D4 M8 x 1.00 3 6.000 4.900 90.000 D4/D5 M10 x 1.00 3 7.000 5.500 90.000 D4/D5 M10 x 1.25 3 7.000 5.500 100.000 D4/D5 M12 x 1.00 3 9.000 7.000 100.000 D4/D5 M12 x 1.25 3 9.000 7.000 100.000 D4/D5 M12 x 1.50 3 9.000 7.000 100.000 D5/D6 M14 x 1.00 3 11.000 9.000 100.000 D4/D5 M14 x 1.25 3 11.000 9.000 100.000 D4/D5 M14 x 1.50 3 11.000 9.000 100.000 D4/D5 M16 x 1.00 3 12.000 9.000 100.000 D4/D5 M16 x 1.50 3 12.000 9.000 100.000 D4/D5 M18 x 1.00 4 14.000 11.000 110.000 D4/D5 M18 x 1.50 4 14.000 11.000 110.000 D4/D5 M20 x 1.00 4 16.000 12.000 125.000 D6/D7 M20 x 1.50 4 16.000 12.000 125.000 D6/D7 M22 x 1.50 4 18.000 14.500 125.000 D6/D7 M24 x 1.50 4 18.000 14.500 140.000 D6/D7 M24 x 2.00 4 18.000 14.500 140.000 D6/D7 M26 x 1.50 4 18.000 14.500 140.000 D7/D8 M27 x 1.50 4 20.000 16.000 140.000 D7/D8 M27 x 2.00 4 20.000 16.000 140.000 D7/D8 M30 x 1.50 4 22.000 18.000 150.000 D7/D8 M30 x 2.00 4 22.000 18.000 150.000 D7/D8 l l l ° ° ° l ° ° 3.002 3.502 ° ° Semi-bottoming Chamfer Lead 4.003 5.003 6.003 ° ° ° l ° ° l ° l ° l ° l ° ° ° ° ° ° l ° ° ° ° ° 6.004 8.004 C · 2-3 8.005 10.005 10.006 12.005 12.006 12.007 14.005 14.006 14.007 16.005 16.007 18.005 18.007 20.005 20.007 22.007 24.007 24.008 26.007 27.007 27.008 30.007 30.008 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 39 sæ4HROUGHæHOLE GREEN RING CUT TAPS æææ5.# æææ5.& æææ-ETRIC æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRIC æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ/VERSIZEDæ(( æææ4HROUGHæHOLE æææ"LINDæHOLE 0AGEæ 0AGEæ sæ34)æ4APS æææ4HROUGHæHOLE æææ"LINDæHOLE 0AGEæ 0AGEæ sæ%'-æ4APS æææ4HROUGHæHOLE æææ"LINDæHOLE 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E HSS-E-PM bright finish hard coated bright finish hard coated <20 40-50 40-75 40-65 40-80 Case hardened steels, heat-treatable steels <25 30-45 30-65 30-60 35-75 Nitriding steels, spheroidal graphite iron <30 20-30 30-55 30-50 35-65 <35 15-25 20-35 25-45 30-60 Structural steels, free-cutting steels 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNC 2B Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 Series 3913 - Cobalt, UNC, spiral point, bright finish Series 3916 - Cobalt, UNC, spiral point, TiN coated Series 3946 - Cobalt, UNC, spiral point, TiCN coated 2B No. Shank dia. Square Size Overall Length Approx. Series Series Series Order Size Flutes inch inch inch Limits 3913 3916 3946 No. 2-56 3-48 3 3 0.141 0.141 0.110 0.110 1.751 1.811 H2/H3 H2/H3 4-40 3 0.141 0.110 1.882 H2/H3 5-40 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.184 2.515 1/2-13 4 0.367 0.275 3.381 H5/H6 9/16-12 4 0.429 0.322 3.591 H5/H6 5/8-11 4 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 1 1/8-7 4 0.896 0.672 5.441 H6/H7 1 1/4-7 4 1.021 0.766 5.748 H7/H8 1 3/8-6 1 1/2-6 4 6 1.108 1.233 0.831 0.925 6.063 6.378 H7/H8 H7/H8 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 DIN length - DIN shank Series 2881 - Cobalt, UNC, spiral point, steam oxide finish, DIN 371 Series 2883 - Cobalt, UNC, spiral point, steam oxide finish, DIN 376 No. 42 Bright Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 2883 2B Size Flutes mm mm mm Limits 2881 4-40 5-40 3 3 3.500 3.500 2.700 2.700 56.000 56.000 H2/H3 H3/H4 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 12-24 3 6.000 4.900 80.000 H4/H5 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H5/H6 3/8-16 3 10.000 7.000 100.000 H4/H5 ° ° ° l ° l ° ° l 7/16-14 3 8.000 6.200 100.000 H5/H6 1/2-13 3 9.000 7.000 110.000 H5/H6 5/8-11 3 12.000 9.000 110.000 H5/H6 3/4-10 4 14.000 11.000 125.000 H5/H6 7/8-9 1-8 4 4 18.000 18.000 14.500 14.500 140.000 160.000 H6/H7 H6/H7 Steam Oxide TiN TiCN MolyGlide TiAlN Order No. 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 ° ° ° ° ° l AlCrN 11.113 12.700 15.875 19.050 22.225 25.400 FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNF Series 3914 - Cobalt, UNF, spiral point, bright finish Series 3917 - Cobalt, UNF, spiral point, TiN coated Series 3947 - Cobalt, UNF, spiral point, TiCN coated 2B No. Size Shank dia. Flutes inch Square Size Overall Length Approx. Series Series Series inch inch Limits 3914 3917 3947 No. l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.184 3 0.141 0.110 1.751 H2/H3 3 0.141 0.110 1.811 H2/H3 4-48 3 0.141 0.110 1.882 H2/H3 5-44 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 12-28 3 0.220 0.165 2.382 H3/H4 1/4-28 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 9/16-18 3 0.429 0.322 3.591 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 1 1/8-12 4 0.896 0.672 5.441 H6/H7 1 1/4-12 4 1.021 0.766 5.748 H7/H8 1 3/8-12 4 1.108 0.831 6.063 H7/H8 1 1/2-12 6 1.233 0.925 6.378 H7/H8 2.515 2.845 3.175 Through Hole 3.505 4.166 4.826 Cut Taps 2-64 3-56 Order 2B Class of Fit 0° Helix 5.486 6.350 7.938 9.525 Plug Tap Chamfer Lead 11.113 12.700 14.288 15.875 B · 3.5 - 5 19.050 22.225 25.400 28.575 31.750 34.925 38.100 DIN length - DIN shank Series 2885 - Cobalt, UNF, spiral point, steam oxide finish, DIN 374 No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 2885 No. 4-48 3 2.200 n.a. 56.000 H2/H3 6-40 3 2.500 2.100 56.000 H2/H3 10-32 3 3.500 2.700 70.000 H3/H4 12-28 3 4.000 3.000 80.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 5/8-18 3 12.000 9.000 100.000 H4/H5 ° ° ° ° ° l l ° ° 2.845 7/8-14 4 18.000 14.500 125.000 H6/H7 1-12 4 18.000 14.500 140.000 H6/H7 3.505 4.826 5.486 6.350 9.525 15.875 22.225 25.400 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 43 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS METRIC ISO2 (6H) Class of Fit ANSI length - ANSI shank Series 3912 - Cobalt, Metric, spiral point, bright finish Series 3915 - Cobalt, Metric, spiral point, TiN coated Series 3945 - Cobalt, Metric, spiral point, TiCN coated No. Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 Shank dia. Square Size Overall Length ISO2 (6H) Approx. Series Series Series Order Size Flutes inch inch inch Limits 3912 3915 3945 No. M2 X 0.40 3 0.141 0.110 1.752 D2/D3 M3 X 0.50 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 4 0.367 0.275 3.381 D5/D6 M14 X 2.00 4 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 M22 x 2.50 4 0.697 0.523 4.689 D6/D7 M24 x 3.00 4 0.760 0.570 4.909 D6/D7 M30 x 3.50 4 0.766 1.021 5.433 D6/D7 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.000 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 22.000 24.000 30.000 DIN length - DIN shank Series 2876 - Cobalt, Metric, spiral point, steam oxide finish, DIN 371 No. 44 Bright Shank dia. Square Size Overall Length ISO2 (6H) DIN 371 Approx. Series Order Size Flutes mm mm mm Limits 2876 No. M3 X 0.50 3 3.500 2.700 56.000 D2/D3 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 ° ° ° ° l l 3.000 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 4.000 5.000 6.000 8.000 10.000 FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank Series 3973 - Cobalt, Metric Fine, spiral point, TiN coated No. Shank dia. Square Size Overall Length Size Flutes inch inch ISO2 (6H) Approx. Series Order inch Limits 3973 No. l l l l l l l l l l l l l l 6.004 3 0.255 0.191 2.500 D4/D5 3 0.318 0.238 2.720 D4/D5 M10 X 1.00 3 0.381 0.286 2.941 D4/D5 M10 X 1.25 3 0.381 0.286 2.941 D4/D5 M12 X 1.00 4 0.367 0.275 3.381 D4/D5 M12 X 1.25 4 0.367 0.275 3.381 D4/D5 M12 X 1.50 4 0.367 0.275 3.381 D5/D6 M14 X 1.25 4 0.429 0.322 3.591 D4/D5 M14 X 1.50 4 0.429 0.322 3.591 D4/D5 M16 X 1.50 4 0.480 0.360 3.811 D4/D5 M18 X 1.50 4 0.542 0.406 4.031 D4/D5 M20 X 1.50 4 0.652 0.489 4.469 D6/D7 M22 x 1.50 4 0.697 0.523 4.689 D6/D7 M24 x 1.50 4 0.760 0.570 4.909 D6/D7 ISO2 (6H) Class of Fit 8.005 10.005 10.006 12.005 12.006 Through Hole Cut Taps M6 x 0.75 M8 X 1.00 METRIC FINE 12.007 14.006 14.007 0° Helix 16.007 18.007 20.007 Plug Tap 22.007 Chamfer Lead 24.007 B · 3.5 - 5 DIN length - DIN shank Series 2879 - Cobalt, Metric Fine, spiral point, oxide finish, DIN 374 Size No. Shank dia. Square Size Overall Length Flutes mm mm mm ISO2 (6H) DIN 374 Approx. Series Order Limits 2879 No. ° ° ° ° l ° ° ° ° ° ° 3.002 M3 X 0.35 3 2.200 2.200 56.000 D2/D3 M5 X 0.50 3 3.500 2.700 70.000 D3/D4 M6 X 0.75 3 4.500 3.400 80.000 D3/D4 M8 X 0.75 3 6.000 4.900 80.000 D3/D4 M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 4 9.000 7.000 100.000 D4/D5 M14 X 1.50 4 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 5.003 6.004 8.004 8.005 10.005 12.005 14.007 16.007 18.007 20.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 45 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNC 2B Class of Fit Series 3919 - Cobalt, UNC, 40° helix, bright finish Series 3922 - Cobalt, UNC, 40° helix, TiN coated Series 3949 - Cobalt, UNC, 40° helix, TiCN coated No. Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 Shank dia. Square Size Overall Length 2B Approx. Series Series Series Order Size Flutes inch inch inch Limits 3919 3922 3949 No. 2-56 3 0.141 0.110 1.751 H2/H3 3-48 3 0.141 0.110 1.811 H2/H3 4-40 3 0.141 0.110 1.882 H2/H3 5-40 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.184 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 3 0.367 0.275 3.381 H5/H6 9/16-12 3 0.429 0.322 3.591 H5/H6 5/8-11 4 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 1 1/8-7 4 0.896 0.672 5.441 H6/H7 1 1/4-7 4 1.021 0.766 5.748 H7/H8 1 3/8-6 4 1.108 0.831 6.063 H7/H8 1 1/2-6 6 1.233 0.925 6.378 H7/H8 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 DIN length - DIN shank Series 1837 - Cobalt, UNC, 40° helix, TiN coated, DIN 371, C(K) chamfer lead Size 2B DIN 371 No. Shank dia. Square Size Overall Length Approx. Series Order Flutes mm mm mm Limits 1837 No. ° ° l l ° 4.826 10-24 3 6.000 4.900 70.000 H3/H4 12-24 3 6.000 4.900 80.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H4/H5 3/8-16 3 10.000 8.000 100.000 H5/H6 5.486 6.350 7.938 9.525 TECH TIP: C(K) Chamfer Lead A C/K Chamfer lead is the same length as the C chamfer lead in that it incorporates 2 – 3 threads into the lead length. As an optional standard this chamfer form is found on semi-bottoming taps with a 40 degree R.H. helix. After complete production of the tap (including hard coating) with the C chamfer form – there is an additional flute grind through the cutting chamfer at approximately a 20 degree helix. This chamfer will show its best results when used in moderately tough materials that tend to produce long chips. The “helix correction” helps to cause an immediate irregular chip flow as the chip formation is starting. This irregular chip flow helps to break the chip and allow it to flow more freely up the flute. This geometry is very useful in applications where “birdnesting” is a common problem. 46 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank Series 3920 - Cobalt, UNF, 40° helix, bright finish Series 3923 - Cobalt, UNF, 40° helix, TiN coated Series 3950 - Cobalt, UNF, 40° helix, TiCN coated No. Shank dia. UNF Overall Length Square Size 2B Class of Fit 2B Approx. Series Series Series Order Size Flutes inch inch inch Limits 3920 3923 3950 No. 2-64 3 0.141 0.110 1.751 H2/H3 3-56 3 0.141 0.110 1.811 H2/H3 4-48 3 0.141 0.110 1.882 H2/H3 5-44 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 12-28 3 0.220 0.165 2.382 H3/H4 1/4-28 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.184 3 0.381 0.286 2.941 H3/H4 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 9/16-18 3 0.429 0.322 3.591 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 1 1/8-12 4 0.896 0.672 5.441 H6/H7 1 1/4-12 4 1.021 0.766 5.748 H6/H7 1 3/8-12 4 1.108 0.831 6.063 H6/H7 1 1/2-12 6 1.233 0.925 6.378 H6/H7 2.845 Blind Hole 3.175 3.505 4.166 Cut Taps 3/8-24 7/16-20 2.515 40° Helix 4.826 5.486 6.350 7.938 Semi-bottoming Chamfer Lead 9.525 11.113 12.700 14.288 C · 2-3 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 DIN length - DIN shank Series 1838 - Cobalt, UNF, 40° helix, TiN coated, DIN 374, C(K) chamfer lead No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 1838 No. 10-32 3 3.500 2.700 70.000 H3/H4 ° ° ° l l l ° l ° ° 4.826 12-28 3 4.000 3.000 80.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 5/16-24 3 6.000 4.900 90.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 7/16-20 3 8.000 6.200 100.000 H4/H5 1/2-20 3 9.000 7.000 100.000 H4/H5 5/8-18 4 12.000 9.000 100.000 H4/H5 7/8-14 4 18.000 14.500 125.000 H6/H7 1-12 4 18.000 14.500 140.000 H6/H7 5.486 6.350 7.938 9.525 11.113 12.700 15.875 22.225 25.400 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 47 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNC / UNF 2B Class of Fit Cut Taps Blind Hole 40° Helix Full-bottoming Chamfer Lead E · 1.5 - 2 Series 3977 - Cobalt, UNC, 40° helix, TiN coated, Form E No. Shank dia. Square Size Overall Length 2B Approx. Series Order Size Flutes inch inch inch Limits 3977 No. 2-56 3-48 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/4-7 1 1/2-6 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 6 0.141 0.141 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 1.021 1.233 0.110 0.110 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.766 0.925 1.751 1.811 1.882 1.941 2.000 2.130 2.382 2.382 2.500 2.720 2.941 3.157 3.381 3.591 3.811 4.252 4.689 5.130 5.748 6.378 H2/H3 H2/H3 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H6/H7 H6/H7 H7/H8 H7/H8 l l l l l l l l l l l l l l l l l l l l 2.184 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 31.750 38.100 Approx. Series Order ANSI length - ANSI shank Series 3978 - Cobalt, UNF, 40° helix, TiN coated, Form E No. 48 Bright Shank dia. Square Size 2B Overall Length Size Flutes inch inch inch Limits 3978 No. 2-64 3-56 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/4-12 1 1/2-12 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 6 0.141 0.141 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 1.021 1.233 0.110 0.110 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.766 0.925 1.751 1.811 1.882 1.941 2.000 2.130 2.382 2.382 2.500 2.720 2.941 3.157 3.381 3.591 3.811 4.252 4.689 5.130 5.748 6.378 H2/H3 H2/H3 H2/H3 H2/H3 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H4/H5 H4/H5 H5/H6 H6/H7 H6/H7 H6/H7 H6/H7 l l l l l l l l l l l l l l l l l l l l 2.184 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 31.750 38.100 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank Series 3954 - Cobalt, UNC, 40° helix, TiN coated, axial coolant through 2B No. Shank dia. Square Size Overall Length Approx. Series Order Size Flutes inch inch inch Limits 3954 No. 1/4-20 3 0.255 0.191 2.500 H4/H5 l l l l l l l 6.350 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 3 0.367 0.275 3.381 H5/H6 4 0.480 0.360 3.811 H5/H6 4 0.590 0.442 4.252 H5/H6 2B Class of Fit 7.938 9.525 11.113 12.700 15.875 19.050 Blind Hole Cut Taps 5/8-11 3/4-10 UNC / UNF 40° Helix Semi-bottoming Chamfer Lead ANSI length - ANSI shank Series 3955 - Cobalt, UNF, 40° helix, TiN coated, axial coolant through Size 2B No. Shank dia. Square Size Overall Length Flutes inch inch inch Limits 3955 No. l l l l l l l 6.350 Approx. Series Order 1/4-28 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 C · 2-3 7.938 9.525 11.113 12.700 15.875 19.050 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 49 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS METRIC ANSI length - ANSI shank Series 4126 - Cobalt, Metric, 40° helix, TiN coated, axial coolant through ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead No. Square Size 2B Approx. Series Order Size Flutes inch inch inch Limits 4126 No. 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 3 0.480 0.360 3.811 D6/D7 l l l l l l 6.000 8.000 10.000 12.000 14.000 16.000 ANSI length - ANSI shank Series 3918 - Cobalt, Metric, 40° helix, bright finish Series 3921 - Cobalt, Metric, 40° helix, TiN coated Series 3948 - Cobalt, Metric, 40° helix, TiCN coated No. Bright Shank dia. Overall Length M6 X 1.00 C · 2-3 50 Available Fall 2011 Shank dia. Square Size Overall Length ISO2 (6H) Approx. Series Series Series Order Size Flutes inch inch inch Limits 3918 3921 3948 No. M2 X 0.40 3 0.141 0.110 1.752 D2/D3 M3 X 0.50 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 M22 x 2.50 4 0.697 0.523 4.689 D6/D7 M24 x 3.00 4 0.760 0.570 4.909 D7/D8 M30 x 3.50 4 1.021 0.766 5.433 D8/D9 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.000 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 22.000 24.000 30.000 FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS DIN length - DIN shank METRIC Series 889 - Cobalt, Metric, 40° helix, bright finish, DIN 371 Series 890 - Cobalt, Metric, 40° helix, bright finish, DIN 376 No. Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 890 ISO2 (6H) Flutes mm mm mm Limits 889 3 2.800 2.100 45.000 D2/D3 M2.2 X 0.45 3 2.800 2.100 45.000 D2/D3 M2.5 X 0.45 3 2.800 2.100 50.000 D2/D3 M2.6 X 0.45 3 2.800 2.100 50.000 D2/D3 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 ° l ° ° ° ° ° ° ° l l ° M3.5 X 0.60 3 4.000 3.000 56.000 D3/D4 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D4/D5 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 M3 X 0.50 3 2.200 n.a. 56.000 D2/D3 M4 X 0.70 3 2.800 2.100 63.000 D3/D4 M5 X 0.80 3 3.500 2.700 70.000 D3/D4 M6 X 1.00 3 4.500 3.400 80.000 D4/D5 M8 X 1.25 3 6.000 4.900 90.000 D4/D5 M10 X 1.50 3 7.000 5.500 100.000 D4/D5 M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 M24 X 3.00 4 18.000 14.500 160.000 D7/D8 No. 2.000 2.200 2.500 Blind Hole 2.600 3.000 3.500 Cut Taps Size M2 X 0.40 Order ISO2 (6H) Class of Fit 40° Helix 4.000 4.000 5.000 Semi-bottoming 6.000 Chamfer Lead 8.000 10.000 ° ° ° ° ° l ° ° l l l 3.000 4.000 5.000 C · 2-3 6.000 8.000 10.000 12.000 14.000 16.000 20.000 24.000 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 51 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank METRIC FINE ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 Series 3974 - Cobalt, Metric Fine, 40° helix, TiN coated No. Shank dia. Overall Length Square Size ISO2 (6H) Approx. Series Order Size Flutes inch inch inch Limits 3974 No. M6 x 0.75 3 0.255 0.191 2.500 D3/D4 M8 X 1.00 3 0.318 0.238 2.720 D4/D5 M10 X 1.00 3 0.381 0.286 2.941 D4/D5 M10 X 1.25 3 0.381 0.286 2.941 D4/D5 M12 X 1.00 3 0.367 0.275 3.381 D4/D5 M12 X 1.25 3 0.367 0.275 3.381 D4/D5 M12 X 1.50 3 0.367 0.275 3.381 D5/D6 M14 X 1.25 3 0.429 0.322 3.591 D4/D5 M14 X 1.50 3 0.429 0.322 3.591 D4/D5 M16 X 1.50 4 0.480 0.360 3.811 D4/D5 M18 X 1.50 4 0.542 0.406 4.031 D4/D5 M20 X 1.50 4 0.652 0.489 4.469 D6/D7 M22 x 1.50 4 0.697 0.523 4.689 D6/D7 M24 x 1.50 4 0.760 0.570 4.909 D6/D7 l l l l l l l l l l l l l l 6.004 8.005 10.005 10.006 12.005 12.006 12.007 14.006 14.007 16.007 18.007 20.007 22.007 24.007 DIN length - DIN shank Series 2424 - Cobalt, Metric Fine, 40° helix, bright finish, DIN 374 52 Bright No. Shank dia. Square Size Overall Length Size Flutes mm mm M5 X 0.50 3 3.500 M6 X 0.75 3 4.500 M8 X 1.00 3 M10 X 1.00 ISO2 (6H) DIN 374 Approx. Series Order mm Limits 2424 No. 2.700 70.000 D3/D4 80.000 D3/D4 6.000 4.900 90.000 D4/D5 3 7.000 5.500 90.000 D4/D5 M10 X 1.25 3 7.000 5.500 100.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.25 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.00 3 11.000 9.000 100.00 D4/D5 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 M24 X 1.50 4 18.000 14.500 140.000 D6/D7 M24 X 2.00 4 18.000 14.500 140.000 D6/D7 ° l ° l ° l ° ° ° ° ° l l ° l 5.003 3.400 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 6.004 8.005 10.005 10.006 12.005 12.006 12.007 14.005 14.007 16.007 18.007 20.007 24.007 24.008 FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank METRIC Series 3976 - Cobalt, Metric, 40° helix, TiN coated, Form E 2B No. Shank dia. Square Size Overall Length Approx. Series Order Size Flutes inch inch inch Limits 3976 No. M2 X 0.40 3 0.141 0.110 1.752 D2/D3 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 l l l l l l l l l l l l 2.000 M3 X 0.50 3 0.318 0.238 2.720 D4/D5 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 3.000 4.000 5.000 6.000 Blind Hole 8.000 10.000 12.000 Cut Taps M8 X 1.25 M10 X 1.50 6H Class of Fit 40° Helix 14.000 16.000 18.000 20.000 Full-bottoming Chamfer Lead DIN length - DIN shank E · 1.5 - 2 Series 2790 - Cobalt, Metric, 40° helix, bright finish, DIN 371, Form E Series 2791 - Cobalt, Metric, 40° helix, bright finish, DIN 376, Form E No. Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 2791 2B Size Flutes mm mm mm Limits 2790 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 l l l l l l M4 X 0.70 3 2.800 2.100 63.000 D3/D4 M5 X 0.80 3 3.500 2.700 70.000 D3/D4 M6 X 1.00 3 4.500 3.400 80.000 D4/D5 M8 X 1.25 3 6.000 4.900 90.000 D4/D5 M10 X 1.50 3 7.000 5.500 100.000 D4/D5 M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 Order No. 3.000 4.000 5.000 6.000 8.000 10.000 ° ° l ° l l l ° 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 53 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS METRIC FINE ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix DIN length - DIN shank Series 2792 - Cobalt, Metric Fine, 40° helix, bright finish, DIN 374, Form E No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 2792 No. M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.25 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.00 3 11.000 9.000 100.000 D4/D5 M14 X 1.25 3 11.000 9.000 100.000 D4/D5 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 ° l l ° l ° ° ° 8.005 10.005 12.005 12.006 12.007 14.005 14.006 14.007 Full-bottoming Chamfer Lead E · 1.5 - 2 Refer to pages 142-145 for additional dimensional information 54 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® %2æ4APPINGæ#OLLETS For DIN standard shank taps Series 4308 Corresponding shank/square dimensions in mm: 5.5 6 7 8 Square Size 3.4 4.3 4.9 5.5 6.2 7 8 9 l2 18 18 18 18 22 22 25 25 l1 mm Order Code ER16 ER16 ER16 ER16 ER16 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 4.5 5.5 6 7 8 4 4.5 5.5 6 7 8 9 10 11 4.5 5.5 6 7 8 9 10 11 12 4 4.5 5.5 6 7 8 9 10 11 12 14 16 18 20 7 8 9 10 11 12 14 16 18 20 22 27.5 27.5 27.5 27.5 27.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 34 34 34 34 34 34 34 34 34 40 40 40 40 40 40 40 40 40 40 40 40 40 40 46 46 46 46 46 46 46 46 46 46 46 4.516 5.516 6.016 7.016 8.016 4.020 4.520 5.520 6.020 7.020 8.020 9.020 10.020 11.020 4.525 5.525 6.025 7.025 8.025 9.025 10.025 11.025 12.025 4.032 4.532 5.532 6.032 7.032 8.032 9.032 10.032 11.032 12.032 14.032 16.032 18.032 20.032 7.040 8.040 9.040 10.040 11.040 12.040 14.040 16.040 18.040 20.040 22.040 ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 11 12 14 16 18 20 22 9 11 12 14.5 16 18 25 25 25 25 28 28 d1 d1 mm 10 Cut Taps d2 nominal size 9 SW 4.5 d2 d1 8° l2 l1 DIN shank taps require tapping collets with the correct diameters and square dimensions. Guhring provides precision ground collets from stock. 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 55 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS UNC ANSI length - ANSI shank Series 3982 - Cobalt, UNC, spiral point, TiN coated, H7 tolerance H7 / H11 Tolerance Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead No. Shank dia. Square Size Overall Length Actual H7 Series Order Size Flutes inch inch inch Limits 3982 No. 6-32 3 0.141 0.110 2.000 H7 l l l l l l l l l l 3.505 8-32 3 0.168 0.131 2.130 H7 10-24 3 0.194 0.152 2.382 H7 12-24 3 0.220 0.165 2.382 H7 1/4-20 3 0.255 0.191 2.500 H7 5/16-18 3 0.318 0.238 2.720 H7 3/8-16 3 0.381 0.286 2.941 H7 7/16-14 3 0.323 0.242 3.157 H7 1/2-13 4 0.367 0.275 3.381 H7 5/8-11 4 0.480 0.360 3.811 H7 Overall Length Actual H11 Series 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 ANSI length - ANSI shank B · 3.5 - 5 Series 3986 - Cobalt, UNC, spiral point, TiN coated, H11 tolerance No. Shank dia. Square Size Order Size Flutes inch inch inch Limits 3986 No. 6-32 3 0.141 0.110 2.000 H11 l l l l l l l l l l 3.505 8-32 3 0.168 0.131 2.130 H11 10-24 3 0.194 0.152 2.382 H11 12-24 3 0.220 0.165 2.382 H11 1/4-20 3 0.255 0.191 2.500 H11 5/16-18 3 0.318 0.238 2.720 H11 3/8-16 3 0.381 0.286 2.941 H11 7/16-14 3 0.323 0.242 3.157 H11 1/2-13 4 0.367 0.275 3.381 H11 5/8-11 4 0.480 0.360 3.811 H11 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 TECH TIP: Oversized taps Oversized Taps are taps that are typically +0.003”/+0.005” larger than standard pitch diameter. An H7 thread limit tap is +0.003” oversize from the basic pitch diameter while an H11 thread limit tap is +0.005” oversize. Typically, oversized taps are used for threading parts that will be subsequently plated or heat treated after tapping. 56 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNF Series 3983 - Cobalt, UNF, spiral point, TiN coated, H7 tolerance No. Shank dia. Square Size Overall Length Actual H7 Series Order Size Flutes inch inch inch Limits 3983 No. 6-40 3 0.141 0.110 2.000 H7 l l l l l l l l l l 3.505 8-36 3 0.168 0.131 2.130 H7 10-32 3 0.194 0.152 2.382 H7 12-28 3 0.220 0.165 2.382 H7 1/4-28 3 0.255 0.191 2.500 H7 3 0.318 0.238 2.720 H7 3/8-24 3 0.381 0.286 2.941 H7 7/16-20 3 0.323 0.242 3.157 H7 1/2-20 4 0.367 0.275 3.381 H7 5/8-18 4 0.480 0.360 3.811 H7 4.166 4.826 5.486 Through Hole 6.350 Cut Taps 5/16-24 H7 / H11 Tolerance 7.938 9.525 0° Helix 11.113 12.700 15.875 Plug Tap Chamfer Lead ANSI length - ANSI shank Series 3987 - Cobalt, UNF, spiral point, TiN coated, H11 tolerance No. Shank dia. Square Size B · 3.5 - 5 Overall Length Actual H11 Series Order Size Flutes inch inch inch Limits 3987 No. 6-40 3 0.141 0.110 2.000 H11 8-36 3 0.168 0.131 2.130 H11 10-32 3 0.194 0.152 2.382 H11 l l l l l l l l l l 3.505 12-28 3 0.220 0.165 2.382 H11 1/4-28 3 0.255 0.191 2.500 H11 5/16-24 3 0.318 0.238 2.720 H11 3/8-24 3 0.381 0.286 2.941 H11 7/16-20 3 0.323 0.242 3.157 H11 1/2-20 4 0.367 0.275 3.381 H11 5/8-18 4 0.480 0.360 3.811 H11 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 57 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS UNC ANSI length - ANSI shank Series 3980 - Cobalt, UNC, 40° helix, TiN coated, H7 tolerance H7 / H11 Tolerance Cut Taps Blind Hole 40° Helix No. Shank dia. Square Size Overall Length Actual H7 Series Order Size Flutes inch inch inch Limits 3980 No. 6-32 3 0.141 0.110 2.000 H7 3.505 1/4-20 3 0.255 0.191 2.500 H7 5/16-18 3 0.318 0.238 2.720 H7 3/8-16 3 0.381 0.286 2.941 H7 7/16-14 3 0.323 0.242 3.157 H7 1/2-13 3 0.367 0.275 3.381 H7 5/8-11 4 0.480 0.360 3.811 H7 l l l l l l l l l l Overall Length Actual H11 Series 8-32 3 0.168 0.131 2.130 H7 10-24 3 0.194 0.152 2.382 H7 12-24 3 0.220 0.165 2.382 H7 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 Chamfer Lead C · 2-3 ANSI length - ANSI shank Series 3984 - Cobalt, UNC, 40° helix, TiN coated, H11 tolerance No. Shank dia. Square Size Order Size Flutes inch inch inch Limits 3984 No. 6-32 3 0.141 0.110 2.000 H11 8-32 3 0.168 0.131 2.130 H11 10-24 3 0.194 0.152 2.382 H11 l l l l l l l l l l 3.505 12-24 3 0.220 0.165 2.382 H11 1/4-20 3 0.255 0.191 2.500 H11 5/16-18 3 0.318 0.238 2.720 H11 3/8-16 3 0.381 0.286 2.941 H11 7/16-14 3 0.323 0.242 3.157 H11 1/2-13 3 0.367 0.275 3.381 H11 5/8-11 4 0.480 0.360 3.811 H11 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 TECH TIP: Oversized taps Oversized Taps are taps that are typically +0.003”/+0.005” larger than standard pitch diameter. An H7 thread limit tap is +0.003” oversize from the basic pitch diameter while an H11 thread limit tap is +0.005” oversize. Typically, oversized taps are used for threading parts that will be subsequently plated or heat treated after tapping. 58 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNF Series 3981 - Cobalt, UNF, 40° helix, TiN coated, H7 tolerance No. Shank dia. Square Size Overall Length Actual H7 Series Size Flutes inch inch inch Limits 3981 No. 6-40 3 0.141 0.110 2.000 H7 l l l l l l l l l l 3.505 8-36 3 0.168 0.131 2.130 H7 10-32 3 0.194 0.152 2.382 H7 12-28 3 0.220 0.165 2.382 H7 1/4-28 3 0.255 0.191 2.500 H7 3 0.318 0.238 2.720 H7 3/8-24 3 0.381 0.286 2.941 H7 7/16-20 3 0.323 0.242 3.157 H7 1/2-20 3 0.367 0.275 3.381 H7 5/8-18 4 0.480 0.360 3.811 H7 4.166 4.826 Blind Hole 5.486 6.350 7.938 Cut Taps 5/16-24 H7 / H11 Tolerance Order 40° Helix 9.525 11.113 12.700 15.875 Semi-bottoming Chamfer Lead ANSI length - ANSI shank C · 2-3 Series 3985 - Cobalt, UNF, 40° helix, TiN coated, H11 tolerance No. Shank dia. Square Size Overall Length Actual H11 Series Order Size Flutes inch inch inch Limits 3985 No. 6-40 3 0.141 0.110 2.000 H11 8-36 3 0.168 0.131 2.130 H11 10-32 3 0.194 0.152 2.382 H11 12-28 3 0.220 0.165 2.382 H11 1/4-28 3 0.255 0.191 2.500 H11 5/16-24 3 0.318 0.238 2.720 H11 3/8-24 3 0.381 0.286 2.941 H11 7/16-20 3 0.323 0.242 3.157 H11 1/2-20 3 0.367 0.275 3.381 H11 5/8-18 4 0.480 0.360 3.811 H11 l l l l l l l l l l 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 59 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank UNC / UNF 3B Class of Fit Cut Taps STI Tap Through Hole 0° Helix Series 3990 - Cobalt, UNC, spiral point, TiN coated, STI style tap No. Shank dia. 3B Overall Length Square Size Approx. Series Order Size Flutes inch inch inch Limits 3990 No. 4-40 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16 1/2-13 3 3 3 3 3 3 3 4 0.141 0.194 0.220 0.255 0.318 0.381 0.367 0.480 0.110 0.152 0.165 0.191 0.238 0.286 0.275 0.360 2.000 2.380 2.380 2.500 2.720 2.937 3.381 3.810 H2/H3 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 l l l l l l l l 2.845 3.505 4.166 4.826 6.350 7.938 9.525 12.700 ANSI length - ANSI shank Series 3991 - Cobalt, UNF, spiral point, TiN coated, STI style tap Plug Tap Chamfer Lead B · 3.5 - 5 3B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3991 No. 4-48 6-40 8-36 10-32 1/4-28 5/16-24 3/8-24 1/2-20 3 3 3 3 3 3 3 4 0.141 0.168 0.220 0.255 0.272 0.381 0.323 0.429 0.110 0.131 0.165 0.191 0.238 0.286 0.242 0.322 2.000 2.126 2.374 2.500 2.720 2.940 3.157 3.594 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H5/H6 H5/H6 l l l l l l l l 2.845 3.505 4.166 4.826 6.350 7.938 9.525 12.700 major dia. wire thread insert Approx. Series Order minor dia. basic thread for thread insert STI TECH TIP: Heli-Coil STI Taps An STI Tap thread tap is designed to create an oversized hole so it can accommodate the required Heli-Coil insert. Screw Thread Inserts are helically formed coils of diamondshaped stainless steel or phosphorous bronze wire that screw into a threaded hole to form a mating internal thread. Screw thread inserts are a convenient way of repairing stripped out threads and are also used to provide stronger threads in soft materials than what can be obtained by directly tapping the base material. Aluminum, zinc die cast, magnesium and even wood are some materials an STI may be used in. 60 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS ANSI length - ANSI shank Series 3988 - Cobalt, UNC, 40° helix, TiN coated, STI style tap No. Shank dia. Overall Length Square Size 3B Approx. Series Order Flutes inch inch inch Limits 3988 No. 4-40 6-32 8-32 10-24 1/4-20 5/16-18 3/8-16 1/2-13 3 3 3 3 3 3 3 4 0.141 0.194 0.220 0.255 0.318 0.381 0.367 0.480 0.110 0.152 0.165 0.191 0.238 0.286 0.275 0.360 2.000 2.380 2.380 2.500 2.720 2.937 3.381 3.810 H2/H3 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 l l l l l l l l 2.845 3.505 4.166 4.826 6.350 7.938 9.525 12.700 ANSI length - ANSI shank 3B Class of Fit STI Tap Blind Hole Cut Taps Size UNC / UNF 40° Helix Series 3989 - Cobalt, UNF, 40° helix, TiN coated, STI style tap 3B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3989 No. 4-48 6-40 8-36 10-32 1/4-28 5/16-24 3/8-24 1/2-20 3 3 3 3 3 3 3 4 0.141 0.168 0.220 0.255 0.272 0.381 0.323 0.429 0.110 0.131 0.165 0.191 0.238 0.286 0.242 0.322 2.000 2.126 2.374 2.500 2.720 2.940 3.157 3.594 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H5/H6 H5/H6 l l l l l l l l 2.845 3.505 4.166 4.826 6.350 7.938 9.525 12.700 Approx. Series Order UNC Tap Size Drill or countersink dia. inch UNF Tap Size Drill or countersink dia. inch 2-56 0.0906 2-64 0.0906 3-48 0.1063 3-56 0.1063 4-40 0.1220 4-48 0.1181 5-40 1.1339 5-44 0.1299 6-32 0.1496 6-40 0.1457 8-32 0.1732 8-36 0.1732 10-24 0.2047 10-32 0.2008 12-24 0.2283 12-28 0.2244 1/4-20 0.2638 1/4-28 0.2598 5/16-18 0.3307 5/16-24 0.3230 3/8-16 0.3937 3/8-24 0.3858 7/16-14 0.4567 7/16-20 0.4528 1/2-13 0.5236 1/2-20 0.5156 9/16-12 0.5906 9/16-18 0.5781 5/8-11 0.6496 5/8-18 0.6406 3/4-10 0.7776 3/4-16 0.7677 7/8-9 0.9055 7/8-14 0.8906 1-8 1.0312 1-12 1.0236 1 1/8-7 1.1614 1 1/8-12 1.1481 1 1/4-7 1.2812 1 1/4-12 1.2736 1 3/8-6 1.4173 1 3/8-12 1.3976 1 1/2-6 1.5469 1 1/2-12 1.5236 Semi-bottoming Chamfer Lead C · 2-3 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 61 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS METRIC Series 1010 - Cobalt, Metric, spiral point, TiN coated, DIN 40435 6H mod Class of Fit EG-M Tap Cut Taps Through Hole 0° Helix Available Fall 2011 DIN length - DIN shank No. Shank dia. Square Size Overall Length Series Order Size Flutes mm mm mm 1010 No. EGM 4 3 6.000 4.90 70.00 EGM 5 3 6.000 4.90 80.00 EGM 6 3 8.000 6.20 90.00 EGM 8 3 10.000 8.00 100.00 EGM 10 3 9.000 7.00 110.00 EGM 12 4 11.000 9.00 110.00 EGM 14 4 12.000 9.00 125.00 EGM 16 4 14.000 11.00 125.00 ° ° l l l ° ° ° 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 Plug Tap Chamfer Lead TECH TIP: EG-M taps B · 3.5 - 5 62 Bright Taps that are designated as EG-M are ISO metric thread, for internal threads that adopt a threaded insert (60° thread angle) such as threaded wire inserts designated for metric applications. Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® 5NIVERSALæ!PPLICATIONSææ!LLOYEDææ5NALLOYEDæ3TEELS Available Fall 2011 DIN length - DIN shank METRIC Series 1011 - Cobalt, Metric, 40° helix, TiN coated, DIN 40435 No. Shank dia. Square Size Overall Length Series Order Size Flutes mm mm mm 1011 No. EGM 4 3 6.000 4.90 70.00 EGM 5 3 6.000 4.90 80.00 EGM 6 3 8.000 6.20 90.00 EGM 8 3 10.000 8.00 100.00 EGM 10 3 9.000 7.00 110.00 EGM 12 4 11.000 9.00 110.00 EGM 14 4 12.000 9.00 125.00 EGM 16 4 14.000 11.00 125.00 ° ° ° l l ° ° ° 4.000 6H mod Class of Fit EG-M Tap 5.000 6.000 8.000 10.000 Blind Hole Cut Taps 12.000 14.000 40° Helix 16.000 Semi-bottoming Chamfer Lead Metric Tap Size Drill or countersink dia. mm M4 4.20 M5 5.25 M6 6.30 M8 8.40 M10 10.50 M12 12.50 M14 14.50 M16 16.50 C · 2-3 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 63 BLUE RING CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ0IPEæTAPSæ æææ.04 æææ.04& 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E bright finish hard coated bright finish hard coated 25-35 40-55 30-55 35-70 20-30 30-40 30-50 35-60 20-30 25-40 25-45 30-50 10-20 20-30 20-35 25-50 Stainless- and acid-resistant steels, sulphured austenitic martensitic HSS-E-PM Stainless Steel and Aerospace Alloys 3B Available Fall 2011 ANSI length - ANSI shank UNC Series 3996 - PM cobalt, UNC, 3B, spiral point, TiN coated Series 3907 - PM cobalt, UNC, 2B, spiral point, TiN coated 3B / 2B Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 No. Shank dia. Square Size 2B Overall Length 3B Approx. Series Approx. Series Order Size Flutes inch inch inch Limits 3907 Limits 3996 No. 4-40 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 l l l l l l l l l l l l l l 2.845 5-40 l l l l l l l l l l l l l l l l H2 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 4 0.367 0.275 3.381 H5/H6 9/16-12 4 0.429 0.322 3.591 H5/H6 5/8-11 4 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 H2 H2 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H4 H4 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 l H4 25.400 DIN length - DIN shank Series 1980 - Cobalt, UNC, spiral point, bright finish, DIN 371 Series 1985 - Cobalt, UNC, spiral point, bright finish, DIN 376 No. 66 Bright Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 1985 2B Size Flutes mm mm mm Limits 1980 4-40 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 l l l ° l l l ° 12-24 3 6.000 4.900 80.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H4/H5 3/8-16 3 9.000 7.000 100.000 H5/H6 1/2-13 3 9.000 7.000 110.000 H5/H6 9/16-12 4 11.000 9.000 110.000 H5/H6 5/8-11 4 12.000 9.000 110.000 H5/H6 3/4-10 4 14.000 11.000 125.000 H5/H6 7/8-9 4 18.000 14.500 140.000 H6/H7 1-8 4 18.000 14.500 160.000 H6/H7 Steam Oxide TiN TiCN MolyGlide TiAlN Order No. 2.845 3.505 4.166 4.826 5.486 6.350 7.938 9.525 l ° l ° l l AlCrN 12.700 14.288 15.875 19.050 22.225 25.400 FIREX® Stainless Steel and Aerospace Alloys 3B Available Fall 2011 ANSI length - ANSI shank Series 3997 - PM cobalt, UNF, 3B, spiral point, TiN coated Series 3908 - PM cobalt, UNF, 2B, spiral point, TiN coated No. Shank dia. Square Size Overall Length UNF 2B 3B Approx. Series Approx. Series Order Size Flutes inch inch inch Limits 3908 Limits 3997 No. 4-48 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 l l l l l l l l l l l l l l 2.845 5-44 l l l l l l l l l l l l l l l l H2 3 0.220 0.165 2.382 H3/H4 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 4 0.367 0.275 3.381 H4/H5 9/16-18 4 0.429 0.322 3.591 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 H2 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H4 H4 3.175 3.505 4.166 4.826 5.486 6.350 0° Helix 7.938 9.525 11.113 12.700 Plug Tap Chamfer Lead 14.288 15.875 19.050 22.225 l Through Hole Cut Taps 12-28 1/4-28 H2 3B / 2B Class of Fit 25.400 B · 3.5 - 5 DIN length - DIN shank Series 1990 - Cobalt, UNF, spiral point, bright finish, DIN 374 No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 1990 No. 6-40 3 2.500 2.100 56.000 H2/H3 8-36 3 2.800 2.100 63.000 H2/H3 10-32 3 3.500 2.700 70.000 H3/H4 ° ° l ° ° ° 3.505 12-28 3 4.000 3.000 80.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 4.166 4.826 5.486 6.350 9.525 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 67 Stainless Steel and Aerospace Alloys ANSI length - ANSI shank Metric 6H Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead Series 3906 - PM cobalt, Metric, spiral point, TiN coated No. Shank dia. Overall Length Square Size ISO2 (6H) Approx. Series Order Size Flutes inch inch inch Limits 3906 No. M2 X 0.40 3 0.141 0.110 1.752 D2/D3 M3 X 0.50 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 4 0.367 0.275 3.381 D5/D6 M14 X 2.00 4 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 l l l l l l l l l l l l 2.000 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 DIN length - DIN shank B · 3.5 - 5 Series 879 - PM cobalt, Metric, spiral point, bright finish, DIN 376 Series 1872 - Cobalt, Metric, spiral point, bright finish, DIN 376 No. 68 Bright Shank dia. Square Size Overall Length DIN 376 DIN 376 Approx. Series Series 879 1872 No. l l l l l l l ° l l l ° l l 3.000 ISO2 (6H) Size Flutes mm mm mm Limits M3 X 0.50 3 2.200 n.a. 56.000 D2/D3 M4 X 0.70 3 2.800 2.100 63.000 D3/D4 M5 X 0.80 3 3.500 2.700 70.000 D3/D4 M6 X 1.00 3 4.500 3.400 80.000 D4/D5 M8 X 1.25 3 6.000 4.900 90.000 D4/D5 M10 X 1.50 3 7.000 5.500 100.000 D4/D5 M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 3 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 M22 X 2.50 4 18.000 14.500 140.000 D6/D7 M24 X 3.00 4 18.000 14.500 160.000 D7/D8 M30 X 3.50 4 22.000 18.000 180.000 D8/D9 Steam Oxide TiN TiCN MolyGlide l ° ° l TiAlN AlCrN Order 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 22.000 24.000 30.000 FIREX® Stainless Steel and Aerospace Alloys DIN length - DIN shank Series 877 - PM cobalt, Metric, spiral point, bright finish, DIN 371 Series 1870 - Cobalt, Metric, spiral point, bright finish, DIN 371 No. Shank dia. Square Size DIN 371 DIN 371 Approx. Series Series ISO2 (6H) Overall Length Metric/ Metric Fine Order Size Flutes mm mm mm Limits 877 1870 No. M2 x 0.40 3 2.800 2.100 45.000 D2/D3 ° M2.2 x 0.45 3 2.800 2.100 45.000 D2/D3 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 ° ° l l l l l l 2.000 6H Class of Fit 2.200 3.000 4.000 5.000 Through Hole Cut Taps l ° ° l l l 6.000 8.000 10.000 0° Helix Plug Tap Chamfer Lead DIN length - DIN shank Series 1873 - Cobalt, Metric Fine, spiral point, bright finish, DIN 374 Size No. Shank dia. Square Size Overall Length Flutes mm mm mm ISO2 (6H) DIN 374 B · 3.5 - 5 Approx. Series Order Limits 1873 No. ° ° ° ° l l ° l ° ° l 3.002 M3 X 0.35 3 2.200 n.a. 56.000 D2/D3 M4 X 0.50 3 2.800 2.100 63.000 D3/D4 M5 X 0.50 3 3.500 2.700 70.000 D3/D4 M6 X 0.75 3 4.500 3.400 80.000 D3/D4 M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 3 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M24 X 2.00 4 18.000 14.500 140.000 D6/D7 4.003 5.003 6.004 8.005 10.005 12.005 14.007 16.007 18.007 24.008 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 69 Stainless Steel and Aerospace Alloys 3B Available Fall 2011 ANSI length - ANSI shank UNC Series 3998 - PM cobalt, UNC, 3B, 40° helix, TiN coated Series 3910 - PM cobalt, UNC, 2B, 40° helix, TiN coated 3B / 2B Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 No. Shank dia. Square Size 2B Overall Length 3B Approx. Series Approx. Series Order Size Flutes inch inch inch Limits 3910 Limits 3998 No. 4-40 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 l l l l l l l l l l l l l l 2.845 5-40 l l l l l l l l l l l l l l l l H2 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 3 0.367 0.275 3.381 H5/H6 9/16-12 4 0.429 0.322 3.591 H5/H6 5/8-11 4 0.480 0.360 3.811 H5/H6 3/4-10 4 0.590 0.442 4.252 H5/H6 7/8-9 4 0.697 0.523 4.689 H6/H7 1-8 4 0.800 0.600 5.130 H6/H7 H2 H2 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H4 H4 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 l H4 25.400 DIN length - DIN shank Series 1981 - Cobalt, UNC, 40° helix, bright finish, DIN 371 Series 1986 - Cobalt, UNC, 40° helix, bright finish, DIN 376 No. 70 Bright Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 1986 2B Size Flutes mm mm mm Limits 1981 2-56 3 2.800 2.100 45.000 H2/H3 4-40 3 3.500 2.700 56.000 H2/H3 5-40 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 3 8.000 6.200 90.000 H4/H5 3/8-16 3 9.000 7.000 100.000 H5/H6 l l ° l ° ° l l l 7/16-14 3 8.000 6.200 100.000 H5/H6 1/2-13 3 9.000 7.000 110.000 H5/H6 9/16-12 3 11.000 9.000 110.000 H5/H6 5/8-11 4 12.000 9.000 110.000 H5/H6 3/4-10 4 14.000 11.000 125.000 H5/H6 7/8-9 4 18.000 14.500 140.000 H6/H7 Steam Oxide TiN TiCN MolyGlide TiAlN Order No. 2.184 2.845 3.175 3.505 4.166 4.826 6.350 7.938 9.525 ° l ° l l l AlCrN 11.113 12.700 14.288 15.875 19.050 22.225 FIREX® Stainless Steel and Aerospace Alloys 3B Available Fall 2011 ANSI length - ANSI shank Series 3999 - PM cobalt, UNF, 3B, 40° helix, TiN coated Series 3911 - PM cobalt, UNF, 2B, 40° helix, TiN coated No. Shank dia. 2B Overall Length Square Size UNF 3B Approx. Series Approx. Series Order Size Flutes inch inch inch Limits 3911 Limits 3999 No. 4-48 3 0.141 0.110 1.882 H2/H3 3 0.141 0.110 1.941 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 12-28 3 0.220 0.165 2.382 H3/H4 1/4-28 3 0.255 0.191 2.500 H3/H4 l l l l l l l l l l l l l l 2.845 5-44 l l l l l l l l l l l l l l l l H2 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 9/16-18 4 0.429 0.322 3.591 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 3/4-16 4 0.590 0.442 4.252 H5/H6 7/8-14 4 0.697 0.523 4.689 H6/H7 1-12 4 0.800 0.600 5.130 H6/H7 H2 H2 H3 H3 H3 H3 H3 H3 H3 H3 H3 H3 H4 3.175 3.505 4.166 5.486 6.350 l 40° Helix 7.938 9.525 11.113 12.700 Semi-bottoming Chamfer Lead 14.288 15.875 19.050 22.225 H4 Blind Hole 4.826 Cut Taps 5/16-24 H2 3B / 2B Class of Fit C · 2-3 25.400 DIN length - DIN shank Series 2867 - Cobalt, UNF, 40° helix, bright finish, DIN 374 No. Shank dia. Square Size Overall Length 2B DIN 374 Approx. Series Order Size Flutes mm mm mm Limits 2867 No. 3-56 3 1.800 n.a. 50.000 H2/H3 2.515 4-48 3 2.200 n.a. 56.000 H2/H3 5-44 3 2.500 2.100 56.000 H2/H3 6-40 3 2.500 2.100 56.000 H2/H3 8-36 3 2.800 2.100 63.000 H2/H3 10-32 3 3.500 2.700 70.000 H3/H4 12-28 3 4.000 3.000 80.000 H3/H4 1/4-28 3 4.500 3.400 80.000 H3/H4 5/16-24 3 6.000 4.900 90.000 H3/H4 3/8-24 3 7.000 5.500 90.000 H3/H4 ° ° ° ° ° ° ° ° ° ° ° ° ° l l 7/16-20 3 8.000 6.200 90.000 H4/H5 1/2-20 3 9.000 7.000 100.000 H4/H5 5/8-18 4 12.000 9.000 100.000 H4/H5 7/8-14 4 18.000 14.500 125.000 H6/H7 1-12 4 18.000 14.500 140.000 H6/H7 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 22.225 25.400 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 71 Stainless Steel and Aerospace Alloys ANSI length - ANSI shank METRIC ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead Series 3909 - PM cobalt, Metric, 40° helix, TiN coated Size No. Shank dia. Square Size Overall Length Flutes inch inch inch ISO2 (6H) Approx. Series Order Limits 3909 No. l l l l l l l l l l l l 2.000 M2 X 0.40 3 0.141 0.110 1.752 D2/D3 M3 X 0.50 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 3 0.194 0.152 2.382 D3/D4 M6 X 1.00 3 0.255 0.191 2.500 D4/D5 M8 X 1.25 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 M18 X 2.50 4 0.542 0.406 4.031 D6/D7 M20 X 2.50 4 0.652 0.489 4.469 D6/D7 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 DIN length - DIN shank Series 909 - PM cobalt, Metric, 40° helix, bright finish, DIN 371 Series 910 - PM cobalt, Metric, 40° helix, bright finish, DIN 376 C · 2-3 No. Shank dia. Square Size DIN 371 DIN 376 Approx. Series Series 910 ISO2 (6H) Overall Length Size Flutes mm mm mm Limits 909 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 l ° l l l l M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 M24 X 3.00 4 18.000 14.500 160.000 D7/D8 Order No. 3.000 4.000 5.000 6.000 8.000 10.000 l ° l ° l 12.000 14.000 16.000 20.000 24.000 DIN length - DIN shank Series 936 - PM cobalt, Metric Fine, 40° helix, bright finish, DIN 374 72 Bright No. Shank dia. Square Size Overall Length Size Flutes mm mm ISO2 (6H) Approx. Series Order mm Limits 936 No. l l ° l l l l ° M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 Steam Oxide TiN TiCN DIN 374 MolyGlide TiAlN AlCrN 8.005 10.005 12.005 12.007 14.007 16.007 18.007 20.007 FIREX® Stainless Steel and Aerospace Alloys DIN length - DIN shank Series 2895 - Cobalt, Metric, 15° helix, TiN coated, DIN 376 Series 2896 - Cobalt, Metric, 15° helix, TiN coated, DIN 371 No. Shank dia. Overall Length Square Size DIN 376 DIN 371 Approx. Series Series 2895 2896 No. l l l l l ° 3.000 ISO2 (6H) Flutes mm mm mm Limits 3 3.500 2.700 56.000 D2/D3 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 M22 X 2.50 4 18.000 14.500 140.000 D6/D7 M24 X 3.00 4 18.000 14.500 160.000 D7/D8 ° ° l ° l l l 4.000 ISO2 (6H) Class of Fit 5.000 6.000 8.000 Cut Taps Size M3 X 0.50 Order METRIC / METRIC FINE 10.000 12.000 Blind Hole 14.000 16.000 18.000 15° Helix 20.000 22.000 24.000 DIN length - DIN shank Semi-bottoming Chamfer Lead C · 2-3 Series 2897 - Cobalt, Metric Fine, 15° helix, TiN coated, DIN 374 No. Shank dia. Square Size Overall Length Size Flutes mm mm M4 X 0.50 3 2.800 M5 X 0.50 3 3.500 M6 X 0.50 3 M6 X 0.75 ISO2 (6H) DIN 374 Approx. Series Order mm Limits 2897 No. 2.100 63.000 D3/D4 70.000 D3/D4 4.500 3.400 80.000 D3/D4 3 4.500 3.400 80.000 D3/D4 ° ° ° l l ° ° ° l l l ° l ° 4.003 2.700 M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 M22 X 1.50 4 18.000 14.500 125.000 D6/D7 M24 X 1.50 4 18.000 14.500 140.000 D6/D7 5.003 6.003 6.004 8.005 10.005 12.005 12.007 14.007 16.007 18.007 20.007 22.007 24.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 73 Stainless Steel and Aerospace Alloys NPT / NPTF ANSI length - ANSI shank Series 1088 - Cobalt, NPT, 25° helix, TiN coated pipe tap Blind or Through Hole 25° Helix Semi-bottoming Chamfer Lead C · 2-3 Shank dia. Square Size Overall Length Series Order Size Flutes mm mm mm 1088 No. 1/16-27 4 8.000 6.20 90.00 8.190 1/8-27 4 11.000 9.00 90.00 1/4-18 5 14.000 11.00 100.00 3/8-18 5 16.000 12.00 110.00 1/2-14 5 18.000 14.50 125.00 3/4-14 5 22.000 18.00 140.00 1 11-1/2 5 25.000 20.00 170.00 l l l l l l l ANSI length - ANSI shank No. Shank dia. 10.620 14.140 17.570 21.900 27.230 34.180 Available Fall 2011 Series 4127 - Cobalt, NPTF, 25° helix, TiN coated pipe tap Square Size Overall Length Series Order Size Flutes mm mm mm 4127 No. 1/16-27 4 8.000 6.20 90.00 1/8-27 4 11.000 9.00 90.00 1/4-18 5 14.000 11.00 100.00 3/8-18 5 16.000 12.00 110.00 1/2-14 5 18.000 14.50 125.00 3/4-14 5 22.000 18.00 140.00 1 11-1/2 5 25.000 20.00 170.00 l l l l l l l 8.190 10.620 14.140 17.570 21.900 27.230 34.180 Refer to pages 142-145 for additional dimensional information Drilling cylindrically and reaming conically using a reamer D3 Taper 1:16 Drilling cylindrically without using a reamer D1 t1 min Cut Taps No. Nominal Size d1 74 Bright Threads per Inch D2 inch D2 t1 min. inch Nominal Size d1 Threads per Inch D2 inch D3 inch t1 min. inch 1/16 27 0.2420 0.4724 1/16 27 0.2344 0.2516 0.4724 1/8 27 0.3346 0.4724 1/8 27 0.3248 0.3441 0.4724 1/4 18 0.4331 0.6890 1/4 18 0.4219 0.4472 0.6890 3/8 18 0.5709 0.6929 3/8 18 0.5551 0.5827 0.6929 1/2 14 0.7031 0.9016 1/2 14 0.6890 0.7213 0.9016 3/4 14 0.9134 0.9055 3/4 14 0.8937 0.9319 0.9055 1 11 1/2 1.1417 1.0787 1 11 1/2 1.1250 1.1689 1.0787 1 1/4 11 1/2 1.4882 1.1063 1 1/4 11 1/2 1.4688 1.5138 1.1063 1 /2 11 1/2 1.7323 1.1181 1 /2 11 1/2 1.7087 1.7528 1.1181 2 11 1/2 2.2047 1.1181 2 11 1/2 2.1850 2.2268 1.1181 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® %2æ4APPINGæ#OLLETS For DIN standard shank taps Series 4308 Corresponding shank/square dimensions in mm: 5.5 6 7 8 Square Size 3.4 4.3 4.9 5.5 6.2 7 8 9 l2 18 18 18 18 22 22 25 25 l1 mm Order Code ER16 ER16 ER16 ER16 ER16 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 4.5 5.5 6 7 8 4 4.5 5.5 6 7 8 9 10 11 4.5 5.5 6 7 8 9 10 11 12 4 4.5 5.5 6 7 8 9 10 11 12 14 16 18 20 7 8 9 10 11 12 14 16 18 20 22 27.5 27.5 27.5 27.5 27.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 34 34 34 34 34 34 34 34 34 40 40 40 40 40 40 40 40 40 40 40 40 40 40 46 46 46 46 46 46 46 46 46 46 46 4.516 5.516 6.016 7.016 8.016 4.020 4.520 5.520 6.020 7.020 8.020 9.020 10.020 11.020 4.525 5.525 6.025 7.025 8.025 9.025 10.025 11.025 12.025 4.032 4.532 5.532 6.032 7.032 8.032 9.032 10.032 11.032 12.032 14.032 16.032 18.032 20.032 7.040 8.040 9.040 10.040 11.040 12.040 14.040 16.040 18.040 20.040 22.040 ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 11 12 14 16 18 20 22 9 11 12 14.5 16 18 25 25 25 25 28 28 d1 d1 mm 10 Cut Taps d2 nominal size 9 SW 4.5 d2 d1 8° l2 l1 DIN shank taps require tapping collets with the correct diameters and square dimensions. Guhring provides precision ground collets from stock. 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 75 RED RING CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E HSS-E-PM Solid carbide bright finish hard coated bright finish hard coated bright finish hard coated Alloyed case hardened steels 10-20 30-40 30-50 35-70 - - Alloyed heat-treatable steels 25-35 30-50 25-45 35-65 - - Alloyed tool steels <35 15-30 20-40 20-45 30-60 - - High speed tool steels <38 8-15 10-30 15-35 25-55 - - <44 - - 4-10 8-15 4-8 8-16 - - - 4-10 3-6 6-12 High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - ANSI shank UNC / UNF 2B Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 Series 3992 - PM cobalt, UNC, spiral point, TiN coated No. Shank dia. Square Size Overall Length 2B Approx. Series Order Size Flutes inch inch inch Limits 3992 No. 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 5 5 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.896 1.021 1.108 1.233 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.672 0.766 0.831 0.925 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.937 3.937 4.331 4.331 4.331 4.921 5.512 6.299 7.087 7.087 7.874 7.874 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H6/H7 H6/H7 H7/H8 H7/H8 H7/H8 H7/H8 l l l l l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 Approx. Series Order DIN length - ANSI shank Series 3994 - PM cobalt, UNF, spiral point, TiN coated No. 78 Bright Shank dia. Square Size Overall Length 2B Size Flutes inch inch inch Limits 3994 No. 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8-12 1 1/4-12 1 3/8-12 1 1/2-12 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 6 6 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.896 1.021 1.108 1.233 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.672 0.766 0.831 0.925 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.543 3.937 3.937 3.937 3.937 4.331 4.921 5.512 5.906 5.901 6.693 6.699 H2/H3 H2/H3 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H4/H5 H4/H5 H5/H6 H6/H7 H6/H7 H6/H7 H6/H7 H6/H7 H6/H7 l l l l l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 Steam Oxide TiN TiCN MolyGlide MolyGlide® TiAlN AlCrN FIREX® High-Tensile, Heat-Treatable Hardened and Tool Steels Available Fall 2011 DIN length - ANSI shank Series 4122 - PM cobalt, Metric, spiral point, TiN coated 2B Shank dia. Square Size Size Flutes inch inch inch Limits 4122 No. M3 X 0.50 M4 X 0.70 M5 X 0.80 M6 X 1.00 M8 X 1.25 M10 X 1.50 M12 X 1.75 M14 X 2.00 M16 X 2.00 M18 X 2.50 M20 X 2.50 3 3 3 3 3 3 4 4 4 4 4 0.141 0.168 0.194 0.255 0.318 0.381 0.367 0.429 0.480 0.542 0.652 0.110 0.131 0.152 0.191 0.238 0.286 0.275 0.322 0.360 0.406 0.489 2.205 2.480 2.756 3.150 3.543 3.937 4.331 4.331 4.331 4.921 5.512 D2/D3 D3/D4 D3/D4 D4/D5 D4/D5 D4/D5 D5/D6 D5/D6 D6/D7 D6/D7 D6/D7 l l l l l l l l l l l 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 Approx. Series Order Through Hole 0° Helix Plug Tap Chamfer Lead Available Fall 2011 DIN length - ANSI shank ISO2 (6H) Class of Fit Cut Taps No. Overall Length METRIC / Metric Fine Series 4123 - PM cobalt, Metric Fine, spiral point, TiN coated No. Shank dia. Square Size Overall Length B · 3.5 - 5 2B Approx. Series Order Size Flutes inch inch inch Limits 4123 No. M8 X 1.00 M10 X 1.00 M10 X 1.25 M12 X 1.00 M12 X 1.25 M12 X 1.50 M14 X 1.25 M14 X 1.50 M16 X 1.50 M18 X 1.50 M20 X 1.50 3 3 3 4 4 4 4 4 4 4 4 0.318 0.381 0.381 0.367 0.367 0.367 0.429 0.429 0.480 0.542 0.652 0.238 0.286 0.286 0.275 0.275 0.275 0.322 0.322 0.360 0.406 0.489\ 3.543 3.543 3.543 3.937 3.937 3.937 3.937 3.937 3.937 4.331 4.921 D4/D5 D4/D5 D4/D5 D4/D5 D4/D5 D5/D6 D4/D5 D4/D5 D4/D5 D4/D5 D6/D7 l l l l l l l l l l l 8.005 10.005 10.006 12.005 12.006 12.007 14.006 14.007 16.007 18.007 20.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 79 High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank METRIC Series 804 - Cobalt, Metric, spiral point, bright finish, DIN 371 Series 1914 - Cobalt, Metric, spiral point, TiCN coated, DIN 371 ISO2 (6H) Class of Fit Cut Taps Through Hole 0° Helix Plug Tap Chamfer Lead B · 3.5 - 5 80 Bright DIN 371 DIN 371 Approx. Series Series Order ISO2 (6H) No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 804 1914 No. l ° ° l ° l ° l 2.000 M2 x 0.40 3 2.800 2.100 45.000 D2/D3 M2.2 x 0.45 3 2.800 2.100 45.000 D2/D3 M2.3 X 0.40 3 2.800 2.100 45.000 D2/D3 M2.5 x 0.45 3 2.800 2.100 50.000 D2/D3 M2.6 x 0.45 3 2.800 2.100 50.000 D2/D3 M3 x 0.50 3 3.500 2.700 56.000 D2/D3 M3.5 x 0.60 3 4.000 3.000 56.000 D3/D4 M4 x 0.70 3 4.500 3.400 63.000 D3/D4 M5 x 0.80 3 6.000 4.900 70.000 D3/D4 M6 x 1.00 3 6.000 4.900 80.000 D4/D5 M8 x 1.25 3 8.000 6.200 90.000 D4/D5 M10 x 1.50 3 10.000 8.000 100.000 D4/D5 l ° ° l l l l l l 2.200 2.300 2.500 2.600 3.000 3.500 l ° l l l 4.000 5.000 6.000 8.000 10.000 DIN length - DIN shank Series 816 - Cobalt, Metric, spiral point, bright finish, DIN 376 Series 1915 - Cobalt, Metric, spiral point, TiCN coated, DIN 376 DIN 376 DIN 376 Approx. Series Series Order ISO2 (6H) No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 816 1915 No. M3 x 0.50 3 2.200 n.a. 56.000 D2/D3 3 2.800 2.100 63.000 D3/D4 M5 x 0.80 3 3.500 2.700 70.000 D3/D4 M6 x 1.00 3 4.500 3.400 80.000 D4/D5 M8 x 1.25 3 6.000 4.900 90.000 D4/D5 M10 x 1.50 3 7.000 5.500 100.000 D4/D5 M12 x 1.75 3 9.000 7.000 110.000 D5/D6 M14 x 2.00 3 11.000 9.000 110.000 D5/D6 M16 x 2.00 3 12.000 9.000 110.000 D6/D7 M18 x 2.50 4 14.000 11.000 125.000 D6/D7 M20 x 2.50 4 16.000 12.000 140.000 D6/D7 M24 x 3.00 4 18.000 14.500 160.000 D7/D8 ° ° ° l ° l ° l l ° l l ° ° ° ° ° ° l ° ° ° l l 3.000 M4 x 0.70 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 24.000 FIREX® High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank Series 828 - Cobalt, Metric Fine, spiral point, bright finish, DIN 374 Size No. Shank dia. Square Size Overall Length Flutes mm mm mm ISO2 (6H) DIN 374 Approx. Series Order Limits 828 No. ° ° ° l ° ° ° l l ° ° l ° 3.002 3 2.200 n.a. 56.000 D2/D3 3 2.800 2.100 63.000 D3/D4 M5 x 0.50 3 3.500 2.700 70.000 D3/D4 M6 x 0.75 3 4.500 3.400 80.000 D3/D4 M8 x 0.75 3 6.000 4.900 80.000 D3/D4 M8 x 1.00 3 6.000 4.900 90.000 D4/D5 M10 x 1.00 3 7.000 5.500 90.000 D4/D5 M12 x 1.50 3 9.000 7.000 100.000 D5/D6 M14 x 1.50 3 11.000 9.000 100.000 D4/D5 M16 x 1.50 3 12.000 9.000 100.000 D4/D5 M18 x 1.50 4 14.000 11.000 110.000 D4/D5 M20 x 1.50 4 16.000 12.000 125.000 D6/D7 M22 x 1.50 4 18.000 14.500 125.000 D6/D7 ISO2 (6H) Class of Fit 4.003 5.003 6.004 8.004 8.005 10.005 Through Hole Cut Taps M3 x 0.35 M4 x 0.50 METRIC FINE 12.007 14.007 0° Helix 16.007 18.007 20.007 22.007 Plug Tap Chamfer Lead B · 3.5 - 5 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 81 High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - ANSI shank UNC / UNF 2B Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 Series 3993 - PM cobalt, UNC, 40° helix, TiN coated No. Shank dia. Square Size Overall Length 2B Approx. Series Order Size Flutes inch inch inch Limits 3993 No. 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 5 5 5 6 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.896 1.021 1.108 1.233 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.672 0.766 0.831 0.925 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.937 3.937 4.331 4.331 4.331 4.921 5.512 6.299 7.087 7.087 7.874 7.874 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H6/H7 H6/H7 H6/H7 H7/H8 H7/H8 H7/H8 l l l l l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 Approx. Series Order DIN length - ANSI shank Series 3995 - PM cobalt, UNF, 40° helix, TiN coated 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3995 No. 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8-12 1 1/4-12 1 3/8-12 1 1/2-12 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 5 5 5 6 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.896 1.021 1.108 1.233 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 0.672 0.766 0.831 0.925 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.543 3.937 3.937 3.937 3.937 4.331 4.921 5.512 5.906 5.901 6.693 6.699 H2/H3 H2/H3 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H4/H5 H4/H5 H5/H6 H6/H7 H6/H7 H6/H7 H6/H7 H6/H7 H6/H7 l l l l l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 28.575 31.750 34.925 38.100 Refer to pages 142-145 for additional dimensional information 82 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® High-Tensile, Heat-Treatable Hardened and Tool Steels Available Fall 2011 DIN length - ANSI shank Series 4124 - PM cobalt, UNC, 15° helix, TiN coated No. Shank dia. Square Size Overall Length 2B Approx. Series Order Flutes inch inch inch Limits 4124 No. 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.937 3.937 4.331 4.331 4.331 4.921 5.512 6.299 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H5/H6 H6/H7 H6/H7 l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 DIN length - ANSI shank Available Fall 2011 Series 4125 - PM cobalt, UNF, 15° helix, TiN coated No. Shank dia. Square Size Overall Length Series Semi-bottoming Chamfer Lead Order Flutes inch inch inch Limits 4125 No. 3 3 3 3 3 3 3 3 3 3 3 3 4 4 5 5 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 2.205 2.205 2.205 2.480 2.756 3.150 3.150 3.543 3.937 3.937 4.331 3.937 4.331 4.331 4.921 5.512 H2/H3 H2/H3 H2/H3 H2/H3 H3/H4 H3/H4 H3/H4 H3/H4 H3/H4 H4/H5 H4/H5 H4/H5 H4/H5 H5/H6 H6/H7 H6/H7 l l l l l l l l l l l l l l l l 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 22.225 25.400 Red ring taps for tough materials Why a 15° helix vs a 40° helix? When tapping high tensile steels or tougher alloys, using a tap with a lower helix angle can sometimes improve tool life. Tapping of high tensile materials typically produces high amounts of torque on a tool. It is advantageous to note that when the needed thread depth is 1.5 x diameter or less - a 15° helix tool will withstand higher torque than a 40° helix while still pulling chips from the hole efficiently. ❍ )NTERNATIONALæ3TOCKææWKS 15° Helix 2B Approx. 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 ● 53!æ3TOCK Blind Hole C · 2-3 Size High tensile and some high alloy steels can be difficult to tap. Guhring’s red ring offering provides you with tools that are designed with these materials in mind. Both a thicker core diameter and a lower rake angle add strength for these manufacturing applications. 2B Class of Fit Cut Taps Size UNC / UNF 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 83 High-Tensile, Heat-Treatable Hardened and Tool Steels Available Fall 2011 DIN length - ANSI shank METRIC / Metric Fine ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Series 4120- PM cobalt, Metric, 40° helix, TiN coated No. Shank dia. Square Size Series Order Size Flutes inch inch inch Limits 4120 No. 3 3 3 3 3 3 3 3 3 4 4 0.141 0.168 0.194 0.255 0.318 0.381 0.367 0.429 0.480 0.542 0.652 0.110 0.131 0.152 0.191 0.238 0.286 0.275 0.322 0.360 0.406 0.489 2.205 2.480 2.756 3.150 3.543 3.937 4.331 4.331 4.331 4.921 4.921 D2/D3 D3/D4 D3/D4 D4/D5 D4/D5 D4/D5 D5/D6 D5/D6 D6/D7 D6/D7 D6/D7 l l l l l l l l l l l 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 Available Fall 2011 DIN length - ANSI shank Series 4121 - PM cobalt, Metric Fine, 40° helix, TiN coated C · 2-3 Bright Approx. M3 X 0.50 M4 X 0.70 M5 X 0.80 M6 X 1.00 M8 X 1.25 M10 X 1.50 M12 X 1.75 M14 X 2.00 M16 X 2.00 M18 X 2.50 M20 X 2.50 Semi-bottoming Chamfer Lead 84 2B Overall Length 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 4121 No. M8 X 1.00 M10 X 1.00 M10 X 1.25 M12 X 1.00 M12 X 1.25 M12 X 1.50 M14 X 1.25 M14 X 1.50 M16 X 1.50 M18 X 1.50 M20 X 1.50 3 3 3 3 3 3 3 3 4 4 4 0.318 0.381 0.381 0.367 0.367 0.367 0.429 0.429 0.480 0.542 0.652 0.238 0.286 0.286 0.275 0.275 0.275 0.322 0.322 0.360 0.406 0.489 90.000 90.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 100.000 125.000 D4/D5 D4/D5 D4/D5 D4/D5 D4/D5 D5/D6 D4/D5 D4/D5 D4/D5 D4/D5 D6/D7 l l l l l l l l l l l 8.005 10.005 10.006 12.005 12.006 12.007 14.006 14.007 16.007 18.007 20.007 Steam Oxide TiN TiCN MolyGlide Approx. Series Order TiAlN AlCrN FIREX® High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank Series 811 - Cobalt, Metric, 40° helix, bright finish, DIN 371 Series 1916 - Cobalt, Metric, 40° helix, TiCN coated, DIN 371 No. Shank dia. Square Size Overall Length METRIC DIN 371 DIN 371 Approx. Series Series ISO2 (6H) Order Size Flutes mm mm mm Limits 811 1916 No. M2 X 0.40 3 2.800 2.100 45.000 D2/D3 l M2.5 X 0.45 3 2.800 2.100 50.000 D2/D3 M2.6 X 0.45 3 2.800 2.100 50.000 D2/D3 M3 X 0.50 3 3.500 2.700 56.000 D2/D3 l l ° ° ° ° l ° ° l l 2.000 3 4.000 3.000 56.000 D3/D4 M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M7 X 1.00 3 7.000 5.500 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 2.500 2.600 ° ° l ° l ° l l 3.000 Blind Hole 3.500 4.000 5.000 Cut Taps M3.5 X 0.60 ISO2 (6H) Class of Fit 40° Helix 6.000 7.000 8.000 10.000 Semi-bottoming Chamfer Lead C · 2-3 DIN length - DIN shank Series 1894 - Cobalt, Metric, 40° helix, bright finish, DIN 371, axial coolant through Series 1901 - Cobalt, Metric, 40° helix, bright finish, DIN 376, axial coolant through No. Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 1901 ISO2 (6H) Size Flutes mm mm mm Limits 1894 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 l ° l ° M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 x 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 x 2.50 4 16.000 12.000 140.000 D6/D7 M20 x 2.50 4 18.000 14.500 160.000 D6/D7 Order No. 5.000 6.000 8.000 10.000 ° l l ° l 12.000 14.000 16.000 18.000 20.000 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 85 High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank METRIC Series 823 - Cobalt, Metric, 40° helix, bright finish, DIN 376, chamfer type C Series 1917 - Cobalt, Metric, 40° helix, TiCN coated, DIN 376, chamfer type C ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead No. Shank dia. Square Size DIN 376 DIN 376 Approx. Series Series ISO2 (6H) Overall Length Order Size Flutes mm mm mm Limits 823 1917 No. M3 X 0.50 3 2.200 n.a. 56.000 D2/D3 M4 X 0.70 3 2.800 2.100 63.000 D3/D4 M5 X 0.80 3 3.500 2.700 70.000 D3/D4 M6 X 1.00 3 4.500 3.400 80.000 D4/D5 M8 X 1.25 3 6.000 4.900 90.000 D4/D5 M10 X 1.50 3 7.000 5.500 100.000 D4/D5 M12 X 1.75 3 9.000 7.000 110.000 D5/D6 M14 X 2.00 3 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 M22 X 2.50 5 18.000 14.500 140.000 D6/D7 M24 X 3.00 5 18.000 14.500 160.000 D7/D8 M30 X 3.50 5 22.000 18.000 180.000 D7/D8 l l l l l l l l l ° ° ° l l l ° l ° l l l l ° ° l ° l l 3.000 C · 2-3 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 18.000 20.000 22.000 24.000 30.000 DIN length - DIN shank Series 2944 - carbide, Metric, TiCN coated, straight flute, chamfer type D D · 3.5-5 No. Shank dia. Square Size Overall Length Size Flutes mm mm M3 X 0.50 3 3.500 M4 X 0.70 4 4.500 M5 X 0.80 4 M6 X 1.00 ISO2 (6H) Approx. Series Order mm Limits 2944 No. 2.700 56.000 D2/D3 63.000 D3/D4 6.000 4.900 70.000 D3/D4 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 5 8.000 6.200 90.000 D4/D5 M10 X 1.50 5 10.000 8.000 100.000 D4/D5 M12 X 1.75 5 12.000 9.000 110.000 D5/D6 M16 X 2.00 5 16.000 12.000 110.000 D6/D7 ° ° l l l l l ° 3.000 3.400 4.000 5.000 6.000 8.000 10.000 12.000 16.000 TECH TIP: Type D Form A type D chamfer form has a 3.5 - 5 thread chamfer lead. This chamfer can be used in both through holes and in blind holes when the tap drill depth permits this chamfer length. This is especially useful when tapping harder materials due to the extended chamfer length which distributes the thread cutting process over more cutting edges. The D chamfer form is usually found on rigid, straight fluted tap designs. 86 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank Series 1188 - PM Cobalt, Metric, 15° helix, TiCN coated, DIN 371, axial coolant Series 1194 - PM Cobalt, Metric, 15° helix, TiCN coated, DIN 376, axial coolant No. Shank dia. Square Size DIN 371 DIN 376 Approx. Series Series 1194 6HX Overall Length Size Flutes mm mm mm Limits 1188 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 ° ° l 3 10.000 8.000 100.000 D4/D5 4 9.000 7.000 110.000 D5/D6 M14 X 2.00 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M20 X 2.50 5 16.000 12.000 140.000 D6/D7 M24 X 3.00 5 18.000 14.500 160.000 D7/D8 No. 6.000 8.000 6HX Class of Fit 10.000 l l ° ° ° 12.000 14.000 Cut Taps M10 X 1.50 M12 X 1.75 Order METRIC / METRIC FINE 16.000 20.000 24.000 Blind Hole 15° Helix DIN length - DIN shank Semi-bottoming Chamfer Lead Series 935 - PM cobalt, Metric, 15° helix, bright finish, DIN 376 No. Shank dia. Square Size Overall Length Size Flutes mm mm M12 X 1.75 3 9.000 7.000 M16 X 2.00 4 12.000 M20 X 2.50 4 16.000 ISO2 (6H) DIN 376 Approx. Series Order mm Limits 935 No. 110.000 D5/D6 12.000 9.000 110.000 D6/D7 12.000 140.000 D6/D7 l l l C · 2-3 16.000 20.000 DIN length - DIN shank Series 1200 - PM Cobalt, Metric Fine, 15° helix, TiCN coated, DIN 376, axial coolant Size 6HX DIN 374 No. Shank dia. Square Size Overall Length Flutes mm mm mm Limits 1200 ° ° ° l ° ° ° ° ° ° Approx. Series Order No. M9 X 1 4 7.000 5.500 90.000 D4/D5 M10 X 1 4 7.000 5.500 90.000 D4/D5 M12 X 1 4 9.000 7.000 100.000 D4/D5 M12 X 1.25 4 9.000 7.000 100.000 D4/D5 M12 X 1.50 4 9.000 7.000 100.000 D5/D6 M14 X 1.50 4 11.000 9.000 100.000 D4/D5 M16 X 1.50 5 12.000 9.000 100.000 D4/D5 M18 X 1.50 5 14.000 11.000 110.000 D4/D5 M20 X 1.50 6 16.000 12.000 125.000 D6/D7 M24 X 1.50 6 18.000 14.500 140.000 D6/D7 9.005 10.005 12.005 12.006 12.007 14.007 16.007 18.007 20.007 24.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 87 High-Tensile, Heat-Treatable Hardened and Tool Steels DIN length - DIN shank METRIC FINE ISO2 (6H) Class of Fit Cut Taps Blind Hole 40° Helix Semi-bottoming Chamfer Lead C · 2-3 Series 835 - Cobalt, Metric Fine, 40° helix, bright finish, DIN 374 Size No. Shank dia. Square Size Overall Length Flutes mm mm mm ISO2 (6H) DIN 374 Approx. Series Order Limits 835 No. ° ° l l ° l l ° l l ° l 6.004 M6 X 0.75 3 4.500 3.400 80.000 D3/D4 M8 X 0.75 3 6.000 4.900 80.000 D3/D4 M8 X 1.00 3 6.000 4.900 90.000 D4/D5 M10 X 1.00 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 M22 X 1.50 5 18.000 14.500 125.000 D6/D7 M24 X 1.50 5 18.000 14.500 140.000 D6/D7 8.004 8.005 10.005 12.005 12.007 14.007 16.007 18.007 20.007 22.007 24.007 DIN length - DIN shank Series 1907 - Cobalt, Metric Fine, 40° helix, bright finish, DIN 374, axial coolant No. Shank dia. Square Size Overall Length Size Flutes mm mm M6 X 0.75 3 4.500 M8 X 0.75 3 6.000 M8 X 1.00 3 M10 X 1.00 ISO2 (6H) DIN 374 Approx. Series Order mm Limits 1907 No. 3.400 80.000 D3/D4 80.000 D3/D4 6.000 4.900 90.000 D4/D5 3 7.000 5.500 90.000 D4/D5 M12 X 1.00 3 9.000 7.000 100.000 D4/D5 M12 X 1.50 3 9.000 7.000 100.000 D5/D6 M14 X 1.50 3 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 4 14.000 11.000 110.000 D4/D5 M20 X 1.50 4 16.000 12.000 125.000 D6/D7 l ° l ° ° ° ° l ° ° 6.004 4.900 8.004 8.005 10.005 12.005 12.007 14.007 16.007 18.007 20.007 Refer to pages 142-145 for additional dimensional information 88 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® %2æ4APPINGæ#OLLETS For DIN standard shank taps Series 4308 Corresponding shank/square dimensions in mm: 4.5 5.5 6 7 8 9 10 11 12 14 16 18 20 22 3.4 4.3 4.9 5.5 6.2 7 8 9 9 11 12 14.5 16 18 l2 18 18 18 18 22 22 25 25 25 25 25 25 28 28 Order Code ER16 ER16 ER16 ER16 ER16 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER20 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER25 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER32 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 ER40 4.5 5.5 6 7 8 4 4.5 5.5 6 7 8 9 10 11 4.5 5.5 6 7 8 9 10 11 12 4 4.5 5.5 6 7 8 9 10 11 12 14 16 18 20 7 8 9 10 11 12 14 16 18 20 22 27.5 27.5 27.5 27.5 27.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 34 34 34 34 34 34 34 34 34 40 40 40 40 40 40 40 40 40 40 40 40 40 40 46 46 46 46 46 46 46 46 46 46 46 4.516 5.516 6.016 7.016 8.016 4.020 4.520 5.520 6.020 7.020 8.020 9.020 10.020 11.020 4.525 5.525 6.025 7.025 8.025 9.025 10.025 11.025 12.025 4.032 4.532 5.532 6.032 7.032 8.032 9.032 10.032 11.032 12.032 14.032 16.032 18.032 20.032 7.040 8.040 9.040 10.040 11.040 12.040 14.040 16.040 18.040 20.040 22.040 ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS SW l1 mm d1 d1 mm Cut Taps d2 nominal size d2 d1 Square Size 8° l2 l1 DIN shank taps require tapping collets with the correct diameters and square dimensions. Guhring provides precision ground collets from stock. 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 89 WHITE RING CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E HSS-E-PM bright finish hard coated bright finish Solid carbide hard coated bright finish hard coated 50-70 60-90 55-85 65-110 70-100 80-130 Spheroidal graphite iron <25 30-50 45-85 40-70 60-100 70-100 80-130 Malleable cast iron <35 15-35 20-40 25-45 35-55 60-110 70-120 Cast iron Cast Iron and Abrasive Materials ANSI length - ANSI shank UNC 2B Class of Fit Cut Taps Through or Blind Hole 0° Helix Series 3937 - Cobalt, UNC, straight flute, FIREX® coated No. Shank dia. 2B Overall Length Square Size Approx. Series Order Size Flutes inch inch inch Limits 3937 No. 6-32 3 0.141 0.110 2.000 H3/H4 l l l l l l l l l l 3.505 8-32 3 0.168 0.131 2.130 H3/H4 10-24 4 0.194 0.152 2.382 H3/H4 12-24 4 0.220 0.165 2.382 H3/H4 1/4-20 4 0.255 0.191 2.500 H4/H5 5/16-18 4 0.318 0.238 2.720 H4/H5 3/8-16 4 0.381 0.286 2.941 H5/H6 7/16-14 4 0.323 0.242 3.157 H5/H6 1/2-13 4 0.367 0.275 3.381 H5/H6 5/8-11 4 0.480 0.360 3.811 H5/H6 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 Straight Flute Chamfer Lead DIN length - DIN shank C·2-3 92 Bright Series 1979 - Cobalt, UNC, straight flute, oxide finish, DIN 371 Series 1984 - Cobalt, UNC, straight flute, oxide finish, DIN 376 2B DIN 371 DIN 376 No. Shank dia. Square Size Overall Length Approx. Series Series Order Size Flutes mm dec. mm Limits 1979 1984 No. 2-56 3 2.800 2.100 45.000 H2/H3 3-48 3 2.800 2.100 50.000 H2/H3 4-40 3 3.500 2.700 56.000 H2/H3 5-40 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 4 6.000 4.900 70.000 H3/H4 ° ° ° ° ° ° ° ° ° l l 12-24 4 6.000 4.900 80.000 H3/H4 1/4-20 4 7.000 5.500 80.000 H4/H5 5/16-18 4 8.000 6.200 90.000 H4/H5 3/8-16 4 9.000 7.000 100.000 H5/H6 7/16-14 4 8.000 6.200 100.000 H5/H6 1/2-13 4 9.000 7.000 110.000 H5/H6 9/16-12 4 11.000 9.000 110.000 H5/H6 5/8-11 4 12.000 9.000 110.000 H5/H6 3/4-10 5 14.000 11.000 125.000 H5/H6 7/8-9 5 18.000 14.500 140.000 H6/H7 1-8 5 18.000 14.500 160.000 H6/H7 Steam Oxide TiN TiCN MolyGlide MolyGlide® TiAlN 2.184 2.515 2.845 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 ° l ° ° l ° ° AlCrN 11.113 12.700 14.288 15.875 19.050 22.225 25.400 FIREX® Cast Iron and Abrasive Materials ANSI length - ANSI shank Series 3938 - Cobalt, UNF, straight flute, FIREX® coated No. Shank dia. UNF Overall Length Square Size 2B Approx. Series Order Size Flutes inch inch inch Limits 3938 No. 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 4 0.194 0.152 2.382 H3/H4 l l l l l l l l l l 3.505 12-28 4 0.220 0.165 2.382 H3/H4 1/4-28 4 0.255 0.191 2.500 H3/H4 5/16-24 4 0.318 0.238 2.720 H3/H4 4 0.381 0.286 2.941 H3/H4 4 0.323 0.242 3.157 H4/H5 1/2-20 4 0.367 0.275 3.381 H4/H5 5/8-18 4 0.480 0.360 3.811 H4/H5 4.166 4.826 5.486 6.350 7.938 Through or Blind Hole Cut Taps 3/8-24 7/16-20 2B Class of Fit 9.525 11.113 12.700 0° Helix 15.875 Straight Flute Chamfer Lead DIN length - DIN shank C·2-3 Series 1989 - Cobalt, UNF, straight flute, oxide finish, DIN 374 2B DIN 374 No. Shank dia. Square Size Overall Length Approx. Series Order Size Flutes mm dec. mm Limits 1989 No. 3-56 3 1.800 na 50.000 H2/H3 3 2.200 na 56.000 H2/H3 6-40 3 2.500 2.100 56.000 H2/H3 8-36 3 2.800 2.100 63.000 H2/H3 10-32 4 3.500 2.700 70.000 H3/H4 12-28 4 4.000 3.000 80.000 H3/H4 1/4-28 4 4.500 3.400 80.000 H3/H4 ° ° ° ° ° ° ° l l ° ° l l l ° 2.515 4-48 5/16-24 4 6.000 4.900 90.000 H3/H4 3/8-24 4 7.000 5.500 90.000 H3/H4 7/16-20 4 8.000 6.200 90.000 H4/H5 1/2-20 4 9.000 7.000 100.000 H4/H5 9/16-18 4 11.000 9.000 100.000 H4/H5 3/4-16 5 14.000 11.000 110.000 H5/H6 7/8-14 5 18.000 14.500 125.000 H6/H7 1-12 5 18.000 14.500 140.000 H6/H7 2.845 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 19.050 22.225 25.400 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 93 Cast Iron and Abrasive Materials ANSI length - ANSI shank METRIC Series 3936 - Cobalt, Metric, straight flute, FIREX® coated ISO2 (6H) Class of Fit Cut Taps Through or Blind Hole 0° Helix No. Shank dia. 6HX Overall Length Square Size Approx. Series Order Size Flutes inch inch inch Limits 3936 No. M3 X 0.50 3 0.141 0.110 1.941 D2/D3 M4 X 0.70 3 0.168 0.131 2.130 D3/D4 M5 X 0.80 4 0.194 0.152 2.382 D3/D4 M6 X 1.00 4 0.255 0.191 2.500 D4/D5 M8 X 1.25 4 0.318 0.238 2.720 D4/D5 M10 X 1.50 4 0.381 0.286 2.941 D4/D5 M12 X 1.75 4 0.367 0.275 3.381 D5/D6 M14 X 2.00 4 0.429 0.322 3.591 D5/D6 M16 X 2.00 4 0.480 0.360 3.811 D6/D7 l l l l l l l l l 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 Straight Flute Chamfer Lead DIN length - DIN shank Series 1858 - Carbide, Metric, straight flute, bright finish, DIN 371, radial coolant through Series 1859 - Carbide, Metric, straight flute, bright finish, DIN 376, radial coolant through C·2-3 94 Bright DIN 371 DIN 376 Approx. Series Series Order 1859 No. ISO2 (6HX) No. Shank dia. Square Size Overall Length Size Flutes mm dec. mm Limits 1858 M5 X 0.80 4 6.000 4.900 70.000 D3/D4 M6 X 1.00 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 M10 X 1.50 4 10.000 8.000 100.000 D4/D5 l l l l M12 X 1.75 4 9.000 7.000 110.000 D5/D6 M14 X 2.00 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 Steam Oxide TiN TiCN MolyGlide MolyGlide® TiAlN 5.000 6.000 8.000 10.000 l ° l ° l AlCrN 12.000 14.000 16.000 18.000 20.000 FIREX® Cast Iron and Abrasive Materials DIN length - DIN shank Series 1860 - Carbide, Metric Fine, straight flute, bright finish, DIN 374, radial coolant No. Shank dia. Square Size Overall Length ISO2 (6H) DIN 374 Approx. Series Order Size Flutes mm dec. mm Limits 1860 No. M12 X 1.50 4 9.000 7.000 100.000 D5/D6 M14 X 1.50 4 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 l l l 12.007 METRIC FINE ISO2 (6H) Class of Fit 14.007 16.007 Cut Taps Through or Blind Hole DIN length - DIN shank Series 1861 - Carbide, Metric Fine, straight flute, bright finish, DIN 371, radial coolant No. Shank dia. Square Size Overall Length ISO2 (6H) 0° Helix DIN 371 Approx. Series Order Size Flutes mm dec. mm Limits 1861 No. M5 X 0.50 4 6.000 4.900 70.000 D3/D4 M8 X 1.00 4 8.000 6.200 90.000 D4/D5 M10 X 1.00 4 10.000 8.000 90.000 D4/D5 l l l 5.003 Straight Flute Chamfer Lead 8.005 10.005 C·2-3 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 95 Cast Iron and Abrasive Materials UNC / UNF Cut Taps Series 4118 - Carbide, UNC, straight flute, bright finish, axial coolant 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 4118 No. 10-24 3 0.194 0.152 2.756 H3/H4 3 0.220 0.165 3.150 H3/H4 1/4-20 3 0.255 0.191 3.150 H4/H5 5/16-18 3 0.318 0.238 3.543 H4/H5 3/8-16 3 0.381 0.286 3.937 H5/H6 Blind Hole 7/16-14 3 0.323 0.242 3.937 H5/H6 1/2-13 3 0.367 0.275 4.331 H5/H6 5/8-11 4 0.480 0.360 4.331 H5/H6 0° Helix 3/4-10 4 0.590 0.442 4.921 H5/H6 l l l l l l l l l 4.826 12-24 2B Class of Fit Straight Flute Chamfer Lead Bright Approx. Series Order 5.486 6.350 7.938 9.525 11.113 12.700 15.875 19.050 Available Fall 2011 DIN length - ANSI shank Series 4119 - Carbide, UNF, straight flute, bright finish, axial coolant 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 4119 No. 10-32 3 0.194 0.152 2.756 H3/H4 3 0.220 0.165 3.150 H3/H4 1/4-28 3 0.255 0.191 3.150 H3/H4 5/16-24 3 0.318 0.238 3.543 H3/H4 3/8-24 3 0.381 0.286 3.543 H3/H4 l l l l l l l l l 4.826 12-28 C·2-3 96 Available Fall 2011 DIN length - ANSI shank Approx. Series Order 7/16-20 3 0.323 0.242 3.937 H4/H5 1/2-20 3 0.367 0.275 3.937 H4/H5 5/8-18 4 0.480 0.360 3.937 H4/H5 3/4-16 4 0.590 0.442 4.331 H5/H6 Steam Oxide TiN TiCN MolyGlide MolyGlide® TiAlN AlCrN 5.486 6.350 7.938 9.525 11.113 12.700 15.875 19.050 FIREX® Cast Iron and Abrasive Materials DIN length - DIN shank Series 969 - Carbide, Metric, straight flute, bright finish, DIN 371, axial coolant Series 1883 - Carbide, Metric, straight flute, bright finish, DIN 376, axial coolant DIN 371 DIN 376 Approx. Series Series Order 1883 No. ISO2 (6H) Shank dia. Square Size Size Flutes mm dec. mm Limits 969 *M3 X 0.50 3 3.500 2.700 56.000 D2/D3 *M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 4 6.000 4.900 70.000 D3/D4 M6 X 1.00 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 M10 X 1.50 4 10.000 8.000 100.000 D4/D5 ° l l l l l M12 X 1.75 4 9.000 7.000 110.000 D5/D6 M14 X 2.00 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 3.000 4.000 5.000 ISO2 (6H) Class of Fit 6.000 8.000 Cut Taps No. Overall Length METRIC / METRIC FINE 10.000 l l l ° l 12.000 14.000 Blind Hole 16.000 18.000 20.000 0° Helix * Sizes <M5 do not have coolant ducts through the tap Straight Flute Chamfer Lead DIN length - DIN shank Series 972 - Carbide, Metric Fine, straight flute, bright finish, DIN 371, axial coolant No. Shank dia. Square Size Overall Length Size Flutes mm dec. *M4 X 0.50 3 4.500 M5 X 0.50 4 6.000 M8 X 1.00 4 M10 X 1.00 4 ISO2 (6H) C·2-3 DIN 371 Approx. Series Order mm Limits 972 No. 3.400 63.000 D3/D4 70.000 D3/D4 8.000 6.200 90.000 D4/D5 10.000 8.000 90.000 D4/D5 ° ° ° ° 4.003 4.900 5.003 8.005 10.005 * Sizes <M5 do not have coolant ducts through the tap Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 97 Cast Iron and Abrasive Materials DIN length - DIN shank METRIC FINE 6HX Class of Fit Series 318 - Cobalt, Metric, straight flute, TiAlN coated, DIN 371, axial coolant Series 1890 - Cobalt, Metric, straight flute, oxide finish, DIN 371, axial coolant No. Shank dia. Square Size Overall Length DIN 371 DIN 371 Approx. Series Series 6HX Order Size Flutes mm dec. mm Limits 318 1890 No. M5 X 0.80 4 6.000 4.900 70.000 D3/D4 M6 X 1.00 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 M10 X 1.50 4 10.000 8.000 100.000 D4/D5 ° l l l l l l l 5.000 DIN 376 DIN 376 6.000 8.000 10.000 Cut Taps Blind Hole 0° Helix DIN length - DIN shank Series 319 - Cobalt, Metric, straight flute, TiAlN coated, DIN 376, axial coolant Series 1897 - Cobalt, Metric, straight flute, oxide finish, DIN 376, axial coolant Straight Flute Chamfer Lead C·2-3 6HX No. Shank dia. Square Size Overall Length Approx. Series Series Order Size Flutes mm dec. mm Limits 319 1897 No. M12 X 1.75 4 9.000 7.000 110.000 D5/D6 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 5 14.000 11.000 125.000 D6/D7 M20 X 2.50 5 16.000 12.000 140.000 D6/D7 l l l ° l l ° ° ° ° 12.000 M14 X 2.00 DIN 374 DIN 374 Approx. Series Series 14.000 16.000 18.000 20.000 DIN length - DIN shank Series 1904 - Cobalt, Metric Fine, straight flute, oxide finish, DIN 374, axial coolant Series 347 - Cobalt, Metric Fine, straight flute, TiAlN coated, DIN 374, axial coolant No. 98 Bright Shank dia. Square Size Overall Length ISO2 (6H) Order Size Flutes mm dec. mm Limits 1904 347 No. M8 X 1.00 4 6.000 4.900 90.000 D4/D5 M10 X 1.00 4 7.000 5.500 90.000 D4/D5 M12 X 1.00 4 9.000 7.000 100.000 D4/D5 M12 X 1.50 4 9.000 7.000 100.000 D5/D6 M14 X 1.50 4 11.000 9.000 100.000 D4/D5 M16 X 1.50 4 12.000 9.000 100.000 D4/D5 M18 X 1.50 5 14.000 11.000 110.000 D4/D5 ° ° ° ° l l ° M20 X 1.50 5 16.000 12.000 125.000 D6/D7 M22 X 1.50 5 18.000 14.500 125.000 D6/D7 M24 X 1.50 5 18.000 14.500 140.000 D6/D7 l ° ° l l l l ° l ° 8.005 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 10.005 12.005 12.007 14.007 16.007 18.007 20.007 22.007 24.007 FIREX® Thread milling cutters by Features and Benefits: Sub-micro grain carbide substrate Longer tool life with tighter tolerances Coming soon Watch for our new brochure! More cost-effective than indexable thread mills PVD TiCN coating standard on many series Extends tool life by providing heat and wear resistance Helical flute design reduces chatter The same carbide thread mill can produce - Right or left hand threads - Single or multiple thread leads - Internal or external threads Countersink style thread mills eliminate secondary operations Coolant-fed style thread mills For improved chip evacuation and better surface finish Drill & thread mill styles combine drill and threading into one tool Well-suited for: æ sæ3TEELS æ sæ3TAINLESSæSTEELS æ sæ4ITANIUMæANDæALLOYS æ sæ(IGHTEMPERATUREæALLOYS æ sæ.ONFERROUSæMATERIALS BLACK RING CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E SILICON CONTENT Aluminium and Al-alloys Al cast alloys Al wrought alloys HSS-E-PM Solid carbide bright finish hard coated bright finish hard coated bright finish hard coated WROUGHT AlUMINUM < 6% n/a 30-50 50-75 50-70 65-80 80-140 90-165 6-10% n/a 25-35 40-50 40-65 65-80 80-140 90-165 >10% n/a - 25-35 40-65 65-80 60-130 80-140 n/a 30-80 50-65 65-100 - - - - n/a 75-150 35-60 50-65 - - - - Aluminum and Aluminum Alloys ANSI length - ANSI shank UNC / UNF Series 3925 - Cobalt, UNC, spiral point, bright finish Series 3928 - Cobalt, UNC, spiral point, TiN coated Series 3967 - Cobalt, UNC, spiral point, MolyGlide® coated Cut Taps 2B Class of Fit Through Hole 0° Helix Plug Tap Chamfer Lead 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3925 3928 3967 No. 4-40 3 0.141 0.110 2.205 H2/H3 3 0.141 0.110 2.205 H2/H3 6-32 3 0.141 0.110 2.000 H3/H4 8-32 3 0.168 0.131 2.130 H3/H4 10-24 3 0.194 0.152 2.382 H3/H4 12-24 3 0.220 0.165 2.382 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-40 Approx. Series Series Series Approx. Series Series Series Order 1/4-20 3 0.255 0.191 2.500 H4/H5 5/16-18 3 0.318 0.238 2.720 H4/H5 3/8-16 3 0.381 0.286 2.941 H5/H6 7/16-14 3 0.323 0.242 3.157 H5/H6 1/2-13 3 0.367 0.275 3.381 H5/H6 5/8-11 3 0.480 0.360 3.811 H5/H6 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 B · 3.5 - 5 ANSI length - ANSI shank Series 3926 - Cobalt, UNF, spiral point, bright finish Series 3929 - Cobalt, UNF, spiral point, TiN coated Series 3968 - Cobalt, UNF, spiral point, MolyGlide® coated No. 102 Bright Shank dia. Square Size Overall Length 2B Order Size Flutes inch inch inch Limits 3926 3929 3968 No. 4-48 3 0.141 0.110 2.205 H2/H3 3 0.141 0.110 2.205 H2/H3 6-40 3 0.141 0.110 2.000 H2/H3 8-36 3 0.168 0.131 2.130 H2/H3 10-32 3 0.194 0.152 2.382 H3/H4 12-28 3 0.220 0.165 2.382 H3/H4 1/4-28 3 0.255 0.191 2.500 H3/H4 5/16-24 3 0.318 0.238 2.720 H3/H4 3/8-24 3 0.381 0.286 2.941 H3/H4 7/16-20 3 0.323 0.242 3.157 H4/H5 1/2-20 3 0.367 0.275 3.381 H4/H5 5/8-18 3 0.480 0.360 3.811 H4/H5 l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-44 l l l l l l l l l l l l Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 FIREX® Aluminum and Aluminum Alloys ANSI length - ANSI shank Series 3924 - Cobalt, Metric, spiral point, bright finish, chamfer type B Series 3927 - Cobalt, Metric, spiral point, TiN coated, chamfer type B Series 3966 - Cobalt, Metric, spiral point, MolyGlide® coated, chamfer type B Shank dia. Square Size Size Flutes inch inch M3 X 0.50 3 0.141 M4 X 0.70 3 0.168 M5 X 0.80 3 0.194 M6 X 1.00 3 M8 X 1.25 ISO2 (6H) Approx. Series Series Series Order inch Limits 3924 3927 3966 No. 0.110 1.941 D2/D3 2.130 D3/D4 0.152 2.382 D3/D4 0.255 0.191 2.500 D4/D5 3 0.318 0.238 2.720 D4/D5 M10 X 1.50 3 0.381 0.286 2.941 D4/D5 M12 X 1.75 3 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 3 0.480 0.360 3.811 D6/D7 l l l l l l l l l l l l l l l l l l l l l l l l l l l 3.000 0.131 4.000 5.000 6.000 8.000 10.000 14.000 16.000 DIN 371 DIN 376 Approx. Series Series Order 1859 No. No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 1858 M5 X 0.80 4 6.000 4.900 70.000 D3/D4 M6 X 1.00 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 l l l l M10 X 1.50 4 10.000 8.000 100.000 D4/D5 4 9.000 7.000 110.000 D5/D6 M14 X 2.00 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 0° Helix Plug Tap Chamfer Lead Series 1858 - Carbide, Metric, bright finish, DIN 371, radial coolant, chamfer type C Series 1859 - Carbide, Metric, bright finish, DIN 376, radial coolant, chamfer type C M12 X 1.75 Through Hole 12.000 DIN length - DIN shank ISO2 (6H) ISO2 (6H) Class of Fit B · 3.5 - 5 5.000 6.000 8.000 10.000 ° ° ° ° ° 12.000 C·2-3 14.000 16.000 18.000 20.000 DIN length - DIN shank Series 1860 - Carbide, Metric Fine, bright finish, DIN 371, radial coolant Series 1861 - Carbide, Metric Fine, bright finish, DIN 376, radial coolant Size No. Shank dia. Square Size Overall Length Flutes mm mm mm DIN 371 DIN 376 Approx. Series Series Order Limits 1860 1861 No. l l l 5.003 ISO2 (6H) M5 X 0.80 4 6.000 4.900 70.000 D5/D6 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 M10 X 1.50 4 10.000 8.000 100.000 D4/D5 M12 X 1.75 4 9.000 7.000 110.000 D3/D4 M14 X 2.00 4 11.000 9.000 110.000 D4/D5 M16 X 2.00 4 12.000 9.000 110.000 D4/D5 l l l 8.005 10.005 12.007 14.007 16.007 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 103 Cut Taps No. Overall Length METRIC / METRIC FINE Aluminum and Aluminum Alloys UNC / UNF Cut Taps 2B Class of Fit Through Hole 0° Helix Plug Tap Chamfer Lead Available Fall 2011 DIN length - ANSI shank Series 4118 - Carbide, UNC, straight flute, bright finish, DIN 371, axial coolant No. Shank dia. Square Size Overall Length 2B Approx. Series Order Size Flutes inch inch inch Limits 4118 No. 10-24 3 0.194 0.152 2.756 H3/H4 4.826 12-24 3 0.220 0.165 3.150 H3/H4 1/4-20 3 0.255 0.191 3.150 H4/H5 l l l l l l l l l 5/16-18 3 0.318 0.238 3.543 H4/H5 3/8-16 3 0.381 0.286 3.937 H5/H6 7/16-14 3 0.323 0.242 3.937 H5/H6 1/2-13 3 0.367 0.275 4.331 H5/H6 5/8-11 4 0.480 0.360 4.331 H5/H6 3/4-10 4 0.590 0.442 4.921 H5/H6 5.486 6.350 7.938 9.525 11.113 12.700 15.875 19.050 Available Fall 2011 DIN length - ANSI shank Series 4119 - Carbide, UNF, straight flute, bright finish, DIN 371, axial coolant B · 3.5 - 5 104 Bright No. Shank dia. Square Size Overall Length 2B Approx. Series Order Size Flutes inch inch inch Limits 4119 No. 10-32 3 0.194 0.152 2.756 H3/H4 12-28 3 0.220 0.165 3.150 H3/H4 1/4-28 3 0.255 0.191 3.150 H3/H4 l l l l l l l l l 4.826 5/16-24 3 0.318 0.238 3.543 H3/H4 3/8-24 3 0.381 0.286 3.543 H3/H4 7/16-20 3 0.323 0.242 3.937 H4/H5 1/2-20 3 0.367 0.275 3.937 H4/H5 5/8-18 4 0.480 0.360 3.937 H4/H5 3/4-16 4 0.590 0.442 4.331 H5/H6 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 5.486 6.350 7.938 9.525 11.113 12.700 15.875 19.050 FIREX® Aluminum and Aluminum Alloys ANSI length - ANSI shank Series 3931 - Cobalt, UNC, 45° helix, bright finish Series 3934 - Cobalt, UNC, 45° helix, TiN coated Series 3970 - Cobalt, UNC, 45° helix, MolyGlide® coated Size No. Shank dia. Square Size Overall Length Flutes inch inch inch UNC / UNF 2B Approx. Series Series Series Order Limits 3931 3934 3970 No. l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 2 0.141 0.110 2.205 H2/H3 2 0.141 0.110 2.205 H2/H3 6-32 2 0.141 0.110 2.205 H3/H4 8-32 2 0.168 0.131 2.130 H3/H4 10-24 2 0.194 0.152 2.382 H3/H4 12-24 2 0.220 0.165 2.382 H3/H4 1/4-20 2 0.255 0.191 2.500 H4/H5 5/16-18 2 0.318 0.238 2.720 H4/H5 3/8-16 2 0.381 0.286 2.941 H5/H6 7/16-14 2 0.323 0.242 3.157 H5/H6 1/2-13 2 0.367 0.275 3.381 H5/H6 5/8-11 3 0.480 0.360 3.813 H5/H6 3.175 3.505 4.166 4.826 Blind Hole Cut Taps 4-40 5-40 2B Class of Fit 5.486 6.350 45° Helix 7.938 9.525 11.113 12.700 15.875 ANSI length - ANSI shank Semi-bottoming Chamfer Lead C · 2-3 Series 3932 - Cobalt, UNF, 45° helix, bright finish Series 3935 - Cobalt, UNF, 45° helix, TiN coated Series 3971 - Cobalt, UNF, 45° helix, MolyGlide® coated 2B No. Shank dia. Square Size Overall Length Size Flutes inch inch inch Limits 3932 3935 3971 No. 4-48 3 0.141 0.110 2.205 H2/H3 3 0.141 0.110 2.205 H2/H3 6-40 2 0.141 0.110 2.000 H2/H3 8-36 2 0.168 0.131 2.130 H2/H3 10-32 2 0.194 0.152 2.382 H3/H4 12-28 2 0.220 0.165 2.382 H3/H4 1/4-28 2 0.255 0.191 2.500 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-44 Approx. Series Series Series Order 5/16-24 2 0.318 0.238 2.720 H3/H4 3/8-24 2 0.381 0.286 2.941 H3/H4 7/16-20 2 0.323 0.242 3.157 H4/H5 1/2-20 2 0.367 0.275 3.381 H4/H5 5/8-18 3 0.480 0.360 3.811 H4/H5 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 105 Aluminum and Aluminum Alloys ANSI length - ANSI shank METRIC Series 3930 - Cobalt, Metric, 45° helix, bright finish Series 3933 - Cobalt, Metric, 45° helix, TiN coated Series 3969 - Cobalt, Metric, 45° helix, MolyGlide® coated ISO2 (6H) Class of Fit Cut Taps Blind Hole 45° Helix 15° Helix Semi-bottoming Chamfer Lead No. Shank dia. ISO2 (6H) Overall Length Square Size Approx. Series Series Series Order Size Flutes inch inch inch Limits 3930 3933 3969 No. M3 X 0.50 2 0.141 0.110 1.941 D2/D3 M4 X 0.70 2 0.168 0.131 2.130 D3/D4 M5 X 0.80 2 0.194 0.152 2.382 D3/D4 M6 X 1.00 2 0.255 0.191 2.500 D4/D5 M8 X 1.25 2 0.318 0.238 2.720 D4/D5 M10 X 1.50 2 0.381 0.286 2.941 D4/D5 M12 X 1.75 2 0.367 0.275 3.381 D5/D6 M14 X 2.00 3 0.429 0.322 3.591 D5/D6 M16 X 2.00 3 0.480 0.360 3.811 D6/D7 l l l l l l l l l l l l l l l l l l l l l l l l l l l 3.000 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 DIN length - DIN shank Series 971 - Carbide, Metric, 15° helix, bright finish, DIN 371, axial coolant C · 2-3 No. Shank dia. ISO2 (6H) Overall Length Square Size DIN 376 Approx. Series Order Size Flutes mm mm mm Limits 971 No. *M3 X 0.50 3 3.500 2.700 56.000 D2/D3 *M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 ° ° l l l l 3.000 4.000 5.000 6.000 8.000 10.000 * Sizes <M5 do not have coolant ducts through the tap DIN length - DIN shank Series 969 - Carbide, Metric, bright finish, DIN 371, axial coolant Series 1883 - Carbide, Metric, bright finish, DIN 376, axial coolant No. Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 1883 ISO2 (6H) Size Flutes mm mm mm Limits 969 *M3 X 0.50 3 3.500 2.700 56.000 D2/D3 ° l l l l l *M4 X 0.70 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 4 6.000 4.900 70.000 D3/D4 M6 X 1.00 4 6.000 4.900 80.000 D4/D5 M8 X 1.25 4 8.000 6.200 90.000 D4/D5 M10 X 1.50 4 10.000 8.000 100.000 D4/D5 M12 X 1.75 4 9.000 7.000 110.000 D5/D6 M14 X 2.00 4 11.000 9.000 110.000 D5/D6 M16 X 2.00 4 12.000 9.000 110.000 D6/D7 M18 X 2.50 4 14.000 11.000 125.000 D6/D7 M20 X 2.50 4 16.000 12.000 140.000 D6/D7 Order No. 3.000 4.000 5.000 6.000 8.000 10.000 l l l ° l 12.000 14.000 16.000 18.000 20.000 * Sizes <M5 do not have coolant ducts through the tap 106 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® Aluminum and Aluminum Alloys DIN length - DIN shank Series 978 - Carbide, Metric Fine, 15° helix, bright finish, DIN 374, axial coolant No. Shank dia. Square Size Overall Length Size Flutes mm mm M12 X 1.50 3 9.000 M14 X 1.50 3 M18 X 1.50 4 ISO2 (6H) DIN 374 Approx. Series Order mm Limits 978 No. 7.000 100.000 D5/D6 12.007 11.000 9.000 100.000 D4/D5 14.000 11.000 110.000 D4/D5 l ° ° METRIC FINE ISO2 (6H) Class of Fit 14.007 18.007 DIN length - DIN shank 15° Helix 0° Helix Series 972 - Carbide, Metric Fine, straight flute, bright finish, DIN 371, axial coolant No. Shank dia. Square Size Overall Length Size Flutes mm mm *M4 X 0.50 3 4.500 M5 X 0.50 4 6.000 M8 X 1.00 4 M10 X 1.00 4 ISO2 (6H) Cut Taps Blind Hole DIN 371 Approx. Series Order mm Limits 972 No. 3.400 63.000 D3/D4 70.000 D3/D4 8.000 6.200 90.000 D4/D5 10.000 8.000 90.000 D4/D5 ° ° ° ° 4.003 4.900 Semi-bottoming Chamfer Lead 5.003 8.005 10.005 * Sizes <M5 do not have coolant ducts through the tap C · 2-3 DIN length - DIN shank C · 2-3 Series 977 - Carbide, Metric Fine, 15° helix, bright finish, DIN 371, axial coolant No. Shank dia. Square Size Overall Length ISO2 (6H) DIN 371 Approx. Series Order Size Flutes mm mm mm Limits 977 No. *M4 X 0.50 3 4.500 3.400 63.000 D3/D4 M5 X 0.50 3 6.000 4.900 70.00 D3/D4 M6 X 0.50 3 6.000 4.900 80.000 D3/D4 M8 X 1.00 3 8.000 6.200 90.000 D4/D5 M10 X 1.00 3 10.000 8.000 90.000 D4/D5 ° ° ° ° ° 4.003 5.003 6.003 8.005 10.005 * Sizes <M5 do not have coolant ducts through the tap Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 107 TI / NI CUT TAPS sæ4HROUGHæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ sæ"LINDæHOLE æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E Titanium and Ti-alloys Nickel and Ni-alloys HSS-E-PM bright finish hard coated bright finish hard coated Solid carbide bright finish hard coated 140-275 - - 12-25 20-30 - - 300-380 - - 6-12 10-18 - - 200-300 - - 6-12 10-18 - - >300 - - 3-6 6-12 - - Titanium, Ti Alloys and Nickel, Ni Alloys DIN length - DIN shank UNC / UNF Cut Taps 2BX Class of Fit Through Hole 0° Helix Series 2905‡ - PM cobalt, UNC, spiral point, TiCN coated, DIN 371, 2BX class of fit, for Titanium Series 2918 - PM cobalt, UNC, spiral point, TiAlN coated, DIN 371, 2BX class of fit, for Nickel Size No. Shank dia. Square Size Overall Length Flutes mm mm mm DIN 371 DIN 371 2BX Approx. Ti Series Ni Series Order Limits 2905 2918 No. l l l l l l l l l l l l l l 3.505 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 12-24 3 6.000 4.900 80.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 5/16-18 4 8.000 6.200 90.000 H4/H5 3/8-16 4 9.000 7.000 100.000 H5/H6 4.166 4.826 5.486 6.350 7.938 9.525 ‡ Series 2905 replaces series 2904, due to a design change. Plug Tap Chamfer Lead DIN length - DIN shank Series 2907‡ - PM cobalt, UNF, spiral point, TiCN coated, DIN 371, 2BX class of fit, for Titanium Series 2919 - PM cobalt, UNF, spiral point, TiAlN coated, DIN 371, 2BX class of fit, for Nickel B · 3.5 - 5 No. Shank dia. Square Size Overall Length DIN 371 DIN 371 2BX Approx. Ti Series Ni Series Order Size Flutes mm mm mm Limits 2907 2919 No. 6-40 3 4.000 3.000 56.000 H2/H3 8-36 3 4.500 3.400 63.000 H2/H3 10-32 3 6.000 4.900 70.000 H3/H4 12-28 3 6.000 4.900 80.000 H3/H4 1/4-28 3 7.000 5.500 80.000 H3/H4 5/16-24 4 8.000 6.200 90.000 H3/H4 3/8-24 4 9.000 8.000 90.000 H3/H4 l l l l l l l l l l l l l l 3.505 4.166 4.826 5.486 6.350 7.938 9.525 ‡ Series 2907 replaces series 2906, due to a design change. 110 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® Titanium, Ti Alloys and Nickel, Ni Alloys DIN length - DIN shank Series 2901‡ - PM cobalt, Metric, spiral point, TiCN coated, DIN 371, for Titanium Series 2916 - PM cobalt, Metric, spiral point, TiAlN coated, DIN 371, for Nickel DIN 371 DIN 371 Approx. Ti Series Ni Series Order ISO2 (6H) No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 2901 2916 No. M3 X 0.50 3 2.800 2.700 56.000 D2/D3 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 l l l l l l l l l l l l l l ° ° 3.000 M4 X 0.70 4 9.000 7.000 110.000 D5/D6 M16 X 2.0 4 12.000 9.000 110.000 D6/D7 6HX Class of Fit 5.000 6.000 8.000 10.000 12.000 16.000 Through Hole ‡ Series 2901 replaces series 2900, due to a design change. 0° Helix Plug Tap Chamfer Lead DIN length - DIN shank Series 2903‡ - PM cobalt, Metric Fine, spiral point, TiCN coated, DIN 371, for Titanium Series 2917 - PM cobalt, Metric Fine, spiral point, TiAlN coated, DIN 371, for Nickel No. Shank dia. Square Size Overall Length DIN 371 DIN 371 Approx. Ti Series Ni Series ISO2 (6H) Order Size Flutes mm mm mm Limits 2903 2917 No. M3 X 0.35 3 3.500 2.700 56.000 D2/D3 M4 X 0.50 3 4.500 3.400 63.000 D3/D4 M5 X 0.50 3 6.000 4.900 70.000 D3/D4 M6 X 0.50 3 6.000 4.900 80.000 D3/D4 M6 X 0.75 3 6.000 4.900 80.000 D3/D4 l l ° l l M8 X 0.50 3 8.000 6.200 80.000 D3/D4 M8 X 0.75 3 8.000 6.200 80.000 D3/D4 M8 X 1.00 3 8.000 6.200 90.000 D4/D5 M10 X 1.00 3 10.000 8.000 90.000 D4/D5 M10 X 1.25 3 10.000 8.000 100.000 D4/D5 ° ° ° ° l ° ° ° ° l 3.002 l ° ° B · 3.5 - 5 4.003 5.003 6.003 6.004 8.003 8.004 8.005 10.005 10.006 ‡ Series 2903 replaces series 2902, due to a design change. Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 111 Cut Taps M12 X 1.75 4.000 METRIC / METRIC FINE Titanium, Ti Alloys and Nickel, Ni Alloys UNC / UNF DIN length - DIN shank Series 2912 - PM cobalt, UNC, 15° helix, TiCN coated, DIN 371, 2BX class of fit, for Titanium Series 2922 - PM cobalt, UNC, 10° helix, TiAlN coated, DIN 371, 2BX class of fit, for Nickel Cut Taps 2BX Class of Fit Blind Hole 15° / 10° Helix Semi-bottoming Chamfer Lead DIN 371 DIN 371 No. Shank dia. Square Size Overall Length 2BX Approx. Ti Series Ni Series Order Size Flutes mm mm mm Limits 2912 2922 No. 4-40 3 3.500 2.700 56.000 H2/H3 3 3.500 2.700 56.000 H2/H3 6-32 3 4.000 3.000 56.000 H3/H4 8-32 3 4.500 3.400 63.000 H3/H4 10-24 3 6.000 4.900 70.000 H3/H4 12-24 3 6.000 4.900 80.000 H3/H4 1/4-20 3 7.000 5.500 80.000 H4/H5 l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-40 5/16-18 3 8.000 6.200 90.000 H4/H5 3/8-16 4 10.000 8.000 100.000 H5/H6 7/16-14* 4 8.000 6.200 100.000 H5/H6 1/2-13* 4 9.000 7.000 110.000 H5/H6 5/8-11* 4 12.000 9.000 110.000 H5/H6 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 C · 2-3 DIN length - DIN shank Series 2914 - PM cobalt, UNF, 15° helix, TiCN coated, DIN 371, 2BX class of fit, for Titanium Series 2923 - PM cobalt, UNF, 10° helix,TiAlN coated, DIN 371, 2BX class of fit, for Nickel DIN 371 DIN 371 2BX Approx. Ti Series Ni Series Order No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 2914 2923 No. 4-48 3 0.138 0.106 2.205 H2/H3 3 0.138 0.106 2.205 H2/H3 6-40 3 4.000 3.000 56.000 H2/H3 8-36 3 4.500 3.400 63.000 H2/H3 10-32 3 6.000 4.900 70.000 H3/H4 l l l l l l l l l l l l l l l l l l l l l l l l 2.845 5-44 12-28 3 6.000 4.900 80.000 H3/H4 1/4-28 3 7.000 5.500 80.000 H3/H4 5/16-24 3 8.000 6.200 90.000 H3/H4 3/8-24 4 10.000 8.000 90.000 H3/H4 7/16-20* 4 8.000 6.200 100.000 H4/H5 1/2-20* 4 9.000 7.000 110.000 H4/H5 5/8-18* 4 12.000 9.000 110.000 H4/H5 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 15.875 *Denotes sizes manufactured to DIN 376 standards. 112 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® Titanium, Ti Alloys and Nickel, Ni Alloys DIN length - DIN shank Series 2909‡ - PM cobalt, Metric, 15° helix, TiCN coated, DIN 371, for Titanium Series 2920 - PM cobalt, Metric, 10° helix, TiAlN coated, DIN 371, for Nickel No. Shank dia. Square Size Overall Length DIN 371 DIN 371 Approx. Ti Series Ni Series ISO2 (6H) Order Size Flutes mm mm mm Limits 2909 2920 No. M3 X 0.50 3 3.500 2.700 56.000 D2/D3 3 4.500 3.400 63.000 D3/D4 M5 X 0.80 3 6.000 4.900 70.000 D3/D4 M6 X 1.00 3 6.000 4.900 80.000 D4/D5 M8 X 1.25 3 8.000 6.200 90.000 D4/D5 M10 X 1.50 3 10.000 8.000 100.000 D4/D5 l l l l l l ° ° 3.000 M4 X 0.70 ° l ° ° ° ° ° ° 4 9.000 7.000 110.000 D5/D6 M16 X 2.0 4 12.000 9.000 110.000 D6/D7 5.000 6HX Class of Fit 6.000 8.000 Cut Taps M12 X 1.75 4.000 METRIC / METRIC FINE 10.000 12.000 16.000 Blind Hole ‡ Series 2909 replaces series 2908, due to a design change. 15° / 10° Helix Semi-bottoming Chamfer Lead DIN length - DIN shank Series 2910 - PM cobalt, Metric Fine, 15° helix, TiCN coated, DIN 371, for Titanium Series 2921 - PM cobalt, Metric Fine, 10° helix, TiAlN coated, DIN 371, for Nickel DIN 371 DIN 371 Approx. Ti Series Ni Series Order ISO2 (6H) C · 2-3 No. Shank dia. Square Size Overall Length Size Flutes mm mm mm Limits 2910 2921 No. M3 X 0.35 3 3.500 2.700 56.000 D2/D3 3 4.500 3.400 63.000 D3/D4 M5 X 0.50 3 6.000 4.900 70.000 D3/D4 M6 X 0.50 3 6.000 4.900 80.000 D3/D4 M6 X 0.75 3 6.000 4.900 80.000 D3/D4 ° ° ° ° ° M8 X 0.50 3 8.000 6.200 80.000 D3/D4 M8 X 0.75 3 8.000 6.200 80.000 D3/D4 M8 X 1.00 3 8.000 6.200 90.000 D4/D5 M10 X 1.00 3 10.000 8.000 90.000 D4/D5 M10 X 1.25 3 10.000 8.000 100.000 D4/D5 l l l l l l l l l l 3.002 M4 X 0.50 ° ° ° 4.003 5.003 6.003 6.004 8.003 8.004 8.005 10.005 10.006 Refer to pages 142-145 for additional dimensional information ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 113 114 Form Taps General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel 115 Form Taps Fluteless taps and thread forming &LUTELESSæTAPSæAREæUSEDæFORæTHEæFORMINGæOFæINTERNALæTHREADSæ WITHOUTæ CHIPæ REMOVALæ )Næ CONTRASTæ TOæ CONVENTIONALæ TAPPINGæ WHEREæ MATERIALæ ISæ CUTæ FROMæ THEæ WORKPIECEæ THREADæ FORMINGæ ISæAæPRESSUREæDEFORMATIONæPROCESSæWITHOUTæCHIPæREMOVALæFORæ THEæPRODUCTIONæOFæINTERNALæTHREADSæ$URINGæTHEæPROCESSæTHEæ MATERIALæISæCOLDæFORMEDæWITHOUTæINTERRUPTINGæTHEæGRAINæFLOW æ !CCORDINGæ TOæ $).æ æ THREADæ FORMINGæ ISæ DESCRIBEDæ ASæ hPRESSINGæTHEæTHREADæINTOæTHEæWORKPIECEæWITHæAæTOOLæPOSSESSINGæ Aæ SPIRALæ WORKINGæ AREAvæ æ 4HEæ SPIRALæ THREADEDæ POLYGONALæ PORTIONæOFæTHEæFLUTELESSæTAPæISæhSCREWEDvæINTOæTHEæPREDRILLEDæ WORKPIECEæWITHæANæAPPROPRIATEæCONSTANTæFEEDæRATEæEQUALæTOæ THEæTHREADæPITCHæ4HEæTHREADæPROFILEæISæPRESSEDæGRADUALLYæVIAæ THEæ FORMINGæ LEADæ INTOæ THEæ MATERIALæ OFæ THEæ WORKPIECEæ SOæ TOæ SPEAKæ3UBSEQUENTLYæTHEæPRESSUREæINæTHEæDEFORMATIONæZONEæ EXCEEDSæ THEæ COMPRESSIONæ LIMITæ THEæ WORKPIECEæ BECOMESæ DUCTILEæANDæISæDEFORMEDæ4HEæMATERIALæYIELDSæRADIALLYæhFLOWSvæ ALONGæTHEæTHREADæPROFILEæINæTHEæUNOCCUPIEDæBASEæOFæTHEæTOOLæ ANDæ FORMSæ THEæ MINORæ DIAMETERæ OFæ THEæ NUTæ THREADæ4HEæ FLOWæ PROCESSæCREATESæTHEæPROCESSæSPECIFICæFORMæPOCKETSæCLAWSæ æ 4HEæTAPPINGæSIZEæHOLEæDIAMETERæISæHEAVILYæDEPENDENTæONæTHEæ FORMABILITYæ OFæ THEæ MATERIALæ THEæ WORKPIECEæ GEOMETRYæ ANDæ THEæ REQUIREDæ EFFECTIVEæ DEPTHæ OFæ THEæ THREADæ )Næ COMPARISONæ TOæCONVENTIONALæTAPPINGæAæLARGERæDIAMETERæTAPPINGæSIZEæHOLEæ SHOULDæBEæSELECTEDæ7ITHæAæLARGERæDIAMETERæTAPPINGæSIZEæHOLEæ THEæLOADæONæTHEæTOOLæISæREDUCEDæWHILEæINCREASINGæTHEæTOOLæLIFEæ 4HANKSæTOæTHEæUNINTERRUPTEDæGRAINæFLOWæTHEæLOADINGæCAPACITYæ OFæTHEæTHREADæREMAINSæSUFFICIENTæWITHæAææEFFECTIVEæTHREADæ DEPTH æ 4HEæ PARTIALLYæ FORMEDæ CRESTSæ OFæ THEæ THREADæ WITHæ DECREASINGæ EFFECTIVEæTHREADæDEPTHæAREæAæTYPICALæCHARACTERISTICæOFæTHREADSæ PRODUCEDæ BYæ THEæ THREADæ FORMINGæ PROCESSæ7ITHæ THEæ FLANKSæ OFæ THEæ THREADæ FULLYæ FORMEDæ THEYæ HAVEæ NOæ INFLUENCEæ ONæ THEæ 0ROCESSæ 4HEæPRODUCTIONæOFæINTERNALæTHREADSæWITHOUTæCHIPæREMOVALæ THREADæFORMINGæINæCOMPARISONæTOæCONVENTIONALæTAPPING &LUTELESSæTAP TENSILEæ STRENGTHæ OFæ THEæ THREADæ )Fæ NECESSARYæ THEæ REQUIREDæ DEFORMATIONæLEVELæOFæTHEæTHREADæSHOULDæBEæDETERMINDEDææBYæ PERFORMINGæAæTEST æ ,UBRICATIONæ ISæ OFæ SIGNIFICANTæ IMPORTANCEæ 4HEæ LUBRICATIONæ PREVENTSæ MATERIALæ FROMæ BUILDINGæ UPæ ONæ THEæ THREADæ FLANKSæ ANDæ ENSURESæ THATæ THEæ NECESSARYæ TORQUEæ FORæ THEæ FORMINGæ PROCESSæISæNOTæTOOæHIGHæ4HEREFOREæUNDERæNOæCIRCUMSTANCESæ SHOULDæ THEREæ EVERæ BEæ Aæ BREAKDOWNæ INæ LUBRICATIONæ 0REFERENCEæ SHOULDæ BEæ GIVENæ TOæ LUBRICANTSæ SUCHæ ASæ COOLINGæ AGENTSæ OFæ OILSæ CONTAININGæ GRAPHITEæ SUCHæ ASæ THOSEæ USEDæ INæ ROLLINGæ PROCESSESæ !LWAYSæ FOLLOWæ THEæ RULEæ h4HEæ BETTERæ THEæ LUBRICATIONæ THEæ EASIERæ THEæ THREADæ FORMINGæ PROCESSvæ )TæOFFERSæTHEæFOLLOWINGæADVANTAGES sæNOæCHIPæFORMATION sæONEæTOOLæFORæTHEæPRODUCTIONæOFæTHREADSæINæTHROUGHæANDæBLINDæ HOLES sæAPPLICATIONæINæWIDEæRANGEæOFæMATERIALS sæNOæCUTTINGæERRORS sæPITCHæANDæANGLEæOFæTHREADæERRORSæTHATæCANæOCCURæWITHæTHREADæ CUTTINGæAREæELIMINATED sæ INTERNALæ THREADSæ PRODUCEDæ BYæ THREADæ FORMINGæ POSSESSæ Aæ HIGHERæ TENSILEæ STRENGTHæ PARTICULARLYæ ATæ THEæ THREADæ FLANKSæ THANKSæTOæTHEæSOCALLEDæhUNINTERRUPTEDæGRAINæFLOWvæANDæTHEæ COLDæFORMINGæPROCESS sæTHEæSURFACEæOFæTHEæTHREADæISæIMPROVED sæFLUTELESSæTAPSæCANæBEæAPPLIEDæATæHIGHERæSPEEDSæBECAUSEæTHEæ FORMABILITYæOFæMANYæMATERIALSæINCREASESæWITHæTHEæFORMINGæ SPEEDæ4HISæ DOESæ NOTæ HAVEæ Aæ NEGATIVEæ EFFECTæ ONæ THEæ TOOLæ LIFE sæREDUCEDæDANGERæOFæBREAKAGEæTHROUGHæRIGIDæDESIGN &LOWæCHARACTERISTICSæOFæTHEæMATERIALæDURINGæTHREADæFORMINGæAND THEæDEFORMATIONæPROCESS $æ æNOM $æ æFLANK $Kæ æHOLE (æ æPROFILEæHEIGHT 0æ æPITCH !æ æFORMæPOCKETæCLAW FINISHEDæNUTæTHREAD #ONVENTIONALæTAP PRESSUREæPOINTS FLUTES FLUTELESSæTAP P D2 OILæGROOVES Dk FORMEDæ THREAD FORMINGæLEAD CUTæ THREAD CHAMFERæ EAD D FORMINGæLEAD 116 A H WORKPIECE Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. 'UHRINGSæNEWæFLUTELESSæTAPSææ#HARACTERISTICSæANDæADVANTAGES #ROSSæSECTIONæOFæFLUTELESSæTAP &ORæ THEæ USERæ Aæ LONGERæ TOOLæ LIFEæ ANDæ INCREASEDæ CUTTINGæ SPEEDSæ AREæ THEæ BENEFITSæ OFæ THISæ SPECIALæ PROCESSæ 4HEæ TOOLæLIFEæCANæBEæINCREASEDæCONSIDERABLYæ DEPENDINGæ ONæ THEæ MATERIALæ TOæ BEæ MACHINEDæ ANDæ THEæ APPLICATIONæ CONDI TIONSæ!ææINCREASEæINæTOOLæLIFEæISæNOTæ UNUSUAL æ 4HEæ IMPROVEDæ SURFACEæ TOPOGRAPHYæ ISæ NOTæ ONLYæ OFæ BENEFITæ TOæ TOOLSæ WITHæ BRIGHTæ FINISHæ 0ARTICULARLYæ COATEDæ TOOLSæ ALSOæ BENEFITæ FROMæ THEæ NEWæ PROCESSæ /UTERæ CONTOURæ ANDæ FORMINGæ LEADæ GREATLYæ DETERMINEæ THEæ PERFORMANCEæ OFæ THEæ FLUTELESSæ TAPæ .UMEROUSæ TESTSæ HAVEæ SHOWNæ THATæ FLUTELESSæ TAPSæ WITHæ OPTIMALæ PRESSUREæ POINTæ GEOMETRYæ ANDæ QUANTITYæACHIEVEæINCREASEDæTOOLæLIFEæANDæ DIMENSIONALæACCURACYæ æ &URTHERæ IMPROVEMENTSæ INæ QUALITYæ AREæ ACHIEVEDæ WHENæ THEæ FLUTELESSæ TAPæ ISæ PRODUCEDæ COMPLETELYæ INæ ONEæ SETTINGæ ANDæ WITHæ ONEæ GRINDINGæ WHEELæ æ SETUPæ WITHæAæSPECIALæROLLæ0ITCHæERRORSæBETWEENæ THEæ THREADæ CRESTSæ ANDæ FORMERæ LEADæ TRANSITIONæAREAæDOæNOTæOCCURæASæWITHæTHEæ CONVENTIONALæGRINDINGæPROCESSæ Form Taps #ONVENTIONALæ FLUTELESSæ TAPSæ PRODUCEDæ BYæAæGRINDINGæPROCESSæONLYæSHOWæTRACESæ OFæ MICROSCOPICæ VERYæ FINEæ GRINDINGæ MARKSæ ONæ THEæ SURFACEæ OFæ THEæ TOOLæ4HISæ ALSOæAPPLIESæTOæTHEæTHREADEDæPORTIONæOFæ THEæTOOLæREQUIREDæTOæPERFORMæTHEæTHREADæ FORMINGæOPERATIONæ æ 4HISæ SURFACEæ TOPOGRAPHYæ STRUCTUREæ HASæ Aæ NEGATIVEæ EFFECTæ ONæ THEæ FRICTIONæ BETWEENæTHEæTOOLæANDæTHEæMATERIALæTOæBEæ REFORMEDæ ASæ WELLæ ASæ ONæ THEæ HEREWITHæ ASSOCIATEDæ HEATæ DEVELOPMENTæ ONæ THEæ NECESSARYæTORQUEæANDæLASTæBUTæNOTæLEASTæ ONæ THEæ WEARæ OFæ THEæ PRESSUREæ POINTSæ OFæ THEæ FLUTELESSæ TAPæ )Næ ADDITIONæ THEæ hGRINDINGæMARKSvæENCOURAGEæTHEæBUILD UPæ OFæ THEæ MATERIALæ TOæ BEæ REFORMEDæ INæ THEæ THREADæ FLANKSæ OFæ THEæ FLUTELESSæ TAPæ 4HISæISæALSOæCALLEDæCOLDæWELDING æ 4HANKSæTOæAæSPECIALæPROCESSæTOæIMPROVEæ THEæ SURFACEæ TOPOGRAPHYæ STRUCTUREæ 'UHRINGSæNEWæ0ROFILEæFLUTELESSæTAPSæNOæ LONGERæPOSSESSæTHESEæhGRINDINGæMARKSvæ 4HISæ HASæ BEENæ CONFIRMEDæ INæ RESEARCHæ ANDæTOOLæLIFEæSTUDIESæINæVARYINGæMATERIALSæ UNDERæPRODUCTIONæCONDITIONS æ æ æ æ æ 3URFACEæOFæAæCONVENTIONALæ FLUTELESSæTAP /PTIMISEDæSURFACEæOFæAæ'UHRINGæ0ROFILEæ FLUTELESSæTAP 4HEæPRINCIPLE 4YPESæOFæTAPPINGæSIZEæHOLE æ WITHæFLUTELESSæTAPSæWITHOUTæOILæGROOVESæ FORæTHREADæDEPTHæéææXæ$ X DETAILæX $ææFLANKæDIAMETER $ææNOMINALæDIAMETER FORMINGæ LEAD $ THREADæPORTION æFORæTHREADæDEPTHæêææXæ$ WITHæFLUTELESSæTAPSæWITHæOILæGROOVESæ FORæALLæTHREADæDEPTHS $ TAPPINGæ SIZEæHOLE NOM 117 Definitions, angles, centers, thread tolerances and fits Thread portion CHAMFERææ LEADæLENGTH OILæGROOVES æ SHANKæDIA GUIDEæ SECTION LENGTHæOFæDRIVINGæ SQUARE DRIVINGæ SQUARE WITHOUTæOILæGROOVES THREADæ LENGTH FLUTEææ LENGTH WITHæOILæGROOVES OVERALLæLENGTH 4YPESæOFæCENTRESæSTANDARDæTOæ$).æ$).æ 4 SOLIDæCONE SOLIDæCONE 1 ONæCUTTINGæ SECTION STEPPEDæCONE 2 ONæ SHANK 5 CHAMFER INTERNALæCENTERæ FORMæ!æORæ2æTOæ$).ææ 3 ACCæTOæMANUFACTæSPECIFICATION Form Taps INTERNALæCENTERæ 6 FORMæ!æORæ2æTOæ$).ææ ACCæTOæMANUFACTæSPECIFICATION #ENTERæONæCUTTINGæSECTION æ 4HREADæDIAæRANGEæ MM WITHæCHAMFERæFORMSææ !æ#æ$æ% WITHæCHAMFERæFORMæ " #ENTERæONæSHANKæ ➀ ➀➁➂ ➂ ➀ ➀➁➂ ➂ ➃➄➅ ➃➄➅ ➅ éæ ææxæ æ Thread tolerances and fits &ITSæBETWEENæINTERNALæANDæEXTERNALæTHREADSæAREæSEPARATEDæBYæ Aæ DIAGONALæ STROKEæ ASæ FORæ EXAMPLEæ (Gæ INTERNALEXTERNALæ THREADæ4HEæ FITæ HASæ TOæ BEæ SELECTEDæ INæ CONJUNCTIONæ WITHæ THEæ APPROPRIATEæTHREADæCONNECTION 4HEæTOLERANCEæZONESæOFæTHEæTOLERANCEæCLASSESæFINEæMEDIUMæ ANDæCOARSEæAREæALLOCATEDæTOæTHREEæSCREWINæLENGTHSæSHORTæ3æ NORMALæ.æANDæLONGæ,æ'ENERALLYæTHEæFOLLOWINGæRULESæAPPLYæ FORæSELECTINGæAæTOLERANCEæCLASS -EDIUMæTOLERANCEæZONEæ. 'ENERALæAPPLICATION #OARSEæTOLERANCEæZONEæ, 4HEREæ AREæ NOæ SPECIALæ PRECISIONæ REQUIREMENTSæ ANDæ INæ CASESæ WHEREæ PRODUCTIONæ DIFFICULTIESæ MAYæ OCCURæ EGæ THREADæ PRO DUCTIONæINæHOTROLLEDæRODSæDEEPæBLINDæHOLESæORæPLASTICæCOM PONENTS &INEæTOLERANCEæZONEæ3 &ORæPRECISIONæTHREADSæWHENæONLYæAæSMALLæVARIATIONæINæTHEæFITæ ISæPERMITTED Screw-in lengths 4HEæ QUALITYæ OFæ THREADæ CONNECTIONæ ISæ ALSOæ AFFECTEDæ BYæ THEæ 4HEæ FOLLOWINGæ FITæ SHOULDæ BEæ SELECTEDæ FORæ NORMALæ SCREWINæ SCREWINæLENGTHæ4HEæ)3/æTOLERANCEæSYSTEMæWASæESPECIALLYæASæ LENGTHæ. REGARDSæTHEæPITCHæDIAMETERæDIVIDEDæINTOæTHREEæGROUPSæIE 4OæENSUREæAæTIGHTERæFITæOFæTHREADæCONNECTIONSæWEæRECOMMENDæ FORæSHORTæSCREWINæLENGTHSæAæNARROWERæFITæ 3æ 3HORTæ .æ .ORMALæ ,æ ,ONGæ 118 æSHORTæSCREWINæLENGTHæ æNORMALæSCREWINæLENGTHæ æLONGæSCREWINæLENGTH Detailed information about Guhring taps is also available on our website at www.guhring.com. Click the Technical tab to view tap/drill sizes, DIN standard information, running parameters and more. 4HREADæFITæWITHæVARYINGæFLANKæCLEARANCE $IAMETERæ$æ OFæ INTERNALæTHREAD $IAMETERæDæ OFæ EXTERNALæTHREAD $IAMETERæ$æ OFæ INTERNALæTHREAD $IAMETERæDæ OFæ EXTERNALæTHREAD INTERNALæ THREAD INTERNALæ THREAD EXTERNALæ THREAD EXTERNALæ THREAD #OARSEæTHREADæFITæWITHæWIDEæFLANKæCLEARANCEæ'GæORæ'EFITæINæEXTERNALææ ANDæINTERNALæTHREAD &INEæTHREADæFITæWITHOUTæFLANKæCLEARANCEæ(HFIT $IAMETERæ$æ OFæ INTERNALæTHREAD $IAMETERæDæ OFæ EXTERNALæTHREAD INTERNALæ THREAD EXTERNALæ THREAD %XPLANATIONææ OFæSYMBOLS æ $æ æ æMAJORæDIAMETERæOFæINTERNALæTHREAD $æ æ æNOMINALæDIAMETERæOFæTAPPINGæSIZEæHOLE $æ æ æEFFECTIVEæDIAMETERæOFæINTERNALæTHREAD Dæ æ æMAJORæDIAMETERæOFæEXTERNALæTHREAD Dæ æ æEFFECTIVEæDIAMETERæOFæEXTERNALæTHREAD Dæ æ æROOTæDIAMETERæOFæEXTERNALæTHREAD 0æ æ æPITCH Sæ æ æPITCHæANGLE (æ æ æPEAKæTOæVALLEYæHEIGHTæOFæTHREADæPROFILE !Oæ æ æPOSITIVEæTOLERANCE !Uæ æ æNEGATIVEæTOLERANCE Form Taps -EDIUMæTHREADæFITæWITHæCLOSEæFLANKæCLEARANCEæ(HæORæ(EFITæBYæBASICæDEVIATIONææ OFæEXTERNALæTHREAD 4APPINGæSIZEæHOLEæDIAMETER 7ITHæ FLUTELESSæ TAPPINGæ THEæ TAPPINGæ SIZEæ HOLEæ DIAMETERæ IN LEADæTOæTOOLæBREAKAGEæ!æTOOæLARGEæTAPPINGæSIZEæHOLEæISæACCEP FLUENCESæTHEæDISTINCTIONæOFæTHEæFORMEDæTHREADææ!æTOOæSMALLæ TABLEæWITHæCERTAINæTOLERANCESæBECAUSEæFORMEDæTHREADSæHAVEæAæ TAPPINGæSIZEæHOLEæDIAMETERæRESULTSæINæANæOVERFORMINGæOFæTHEæ SUFFICIENTæLOADINGæCAPACITYæFROMæAæææBEARINGæDEPTH THREADæWHICHæMUSTæDEFINITELYæBEæPREVENTEDæBECAUSEæTHISæCANæ 4APPINGæSIZEæHOLEæDIAMETERæISæTOOæLARGE sæTHREADæNOTæFORMED sæLARGEæFORMæPOCKETæCLAW sæHEIGHTæOFæPROFILEæTOOæLOW /PTIMALæTAPPINGæSIZEæHOLEæDIAMETER sæTHREADæFULLYæFORMEDæ sæSMALLæFORMæPOCKETæCLAW sæOPTIMALæHEIGHTæOFæPROFILE 4APPINGæSIZEæHOLEæTOOæSMALL sæTHREADæOVERFORMED sæNOæFORMæPOCKETæCLAW sæPROFILEæTOOæHIGH Cooling lubricants with fluteless taps 7ITHæFLUTELESSæTAPSæTHEæMAINæTASKæOFæTHEæCOOLANTæISæLUBRICA TIONæ4HEæBETTERæTHEæLUBRICATIONæWITHæTHEæMAXIMUMæCONCEN TRATIONæTHEæLONGERæTHEæTOOLæLIFE 4HEREæAREæTWOæDIFFERENTæTYPESæOFææLUBRICANT /ILæBASEDæLUBRICANTS 4HESEæAREæMINERALæOILSæWITHæTHEæBESTæLUBRICATINGæCHARACTERI STICSæ4HEYæREDUCEæFRICTIONæANDæACHIEVEæOPTIMALæLIFE Soluble lubricants 3OLUBLEæORæEMULSIONæLUBRICANTSæAREæCONCENTRATESæMIXEDæ WITHæWATERæ7HEREæAææEMULSIONæISæTYPICALLYæFINEæFORæMOSTæ CUTTINGæPROCESSESæAæHIGHERæLEVELæOFæLUBRICITYæISæNEEDEDæ FORæTHREADæFORMINGæ!æCONTENTæOFææISæIDEALæFORæFORMINGæ THREADSæ)TæSHOULDæBEæNOTEDæTHATææOFæTHEæSUCCESSæOFæ THREADæFORMINGæISæBASEDæONæPROPERæLUBRICATION 6 7 4OOLæLIFE &RICTION 8 9 10 12 20 50 100 #ONCENTRATIONæCONTENTæOFæTHEæCOOLINGæLUBRICANTæINæ 119 FORM TAPS sæ&LUTELESSæ4APS æææ5.# æææ5.& æææ-ETRICæ æææ-ETRICæFINE 0AGEæ 0AGEæ 0AGEæ 0AGEæ Note: Items marked as International Stock may become stocked in USA if sufficient volume is recognized. Cutting Rate Recommendations for Form Taps can be found on page 138 Thread Forming Taps ANSI length - ANSI shank UNC Series 3940 - Cobalt, UNC, form tap, TiN coated, Form C chamfer Series 3943 - Cobalt, UNC, form tap, TiCN coated, Form C chamfer 2BX Class of Fit Form Taps Through or Blind Hole Chamfer Lead C · 2-3 No. Lube Shank dia. 2BX Overall Length Square Size Approx. Series Series Order Size Grooves inch inch inch Limits 3940 3943 No. 4-40 4 0.141 0.110 1.882 H4/H5 5-40 4 0.141 0.110 1.941 H4/H5 6-32 4 0.141 0.110 2.000 H5/H6 8-32 4 0.168 0.131 2.130 H5/H6 10-24 4 0.194 0.152 2.382 H6/H7 12-24 4 0.220 0.165 2.382 H6/H7 1/4-20 4 0.255 0.191 2.500 H7/H8 5/16-18 5 0.318 0.238 2.720 H8/H9 l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 3/8-16 5 0.381 0.286 2.941 H8/H9 7/16-14 5 0.323 0.242 3.157 H9/H10 1/2-13 5 0.367 0.275 3.381 H10/H11 9/16-12 5 0.429 0.322 3.591 H10/H11 5/8-11 5 0.480 0.360 3.811 H11/H12 3/4-10 7 0.590 0.442 4.252 H12/H13 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 ANSI length - ANSI shank Series 3959 - Cobalt, UNC, straight flute, TiN coated, Form E chamfer No. Lube Shank dia. Square Size Size Grooves inch inch inch Limits 3959 No. 4-40 4 0.141 0.110 1.882 H4/H5 4 0.141 0.110 2.000 H5/H6 8-32 4 0.168 0.131 2.130 H5/H6 10-24 4 0.194 0.152 2.382 H6/H7 1/4-20 4 0.255 0.191 2.500 H7/H8 5/16-18 5 0.318 0.238 2.720 H8/H9 l l l l l l l l l l l 2.845 6-32 E · 1.5 - 2 122 Bright 2BX Overall Length Approx. Series Order 3/8-16 5 0.381 0.286 2.941 H8/H9 7/16-14 5 0.323 0.242 3.157 H9/H10 1/2-13 5 0.367 0.275 3.381 H10/H11 9/16-18 5 0.429 0.322 3.591 H10/H11 5/8-11 5 0.480 0.360 3.811 H11/H12 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 3.505 4.166 4.826 6.350 7.938 9.525 11.113 12.700 14.288 15.875 FIREX® Thread Forming Taps DIN length - DIN shank Series 1582 - Cobalt, UNC, form tap, TiN coated, DIN 371 Series 1583 - Cobalt, UNC, form tap, TiN coated, DIN 376 No. Lube Shank dia. Square Size Overall Length DIN 371 DIN 376 Approx. Series Series 1583 2BX Size Grooves mm mm mm Limits 1582 10-24 4 6.000 4.900 70.000 H6/H7 12-24 4 6.000 4.900 80.000 H6/H7 1/4-20 4 7.000 5.500 80.000 H7/H8 l ° l l l l 5/16-18 5 8.000 6.200 90.000 H8/H9 3/8-16 5 10.000 8.000 100.000 H8/H9 7/16-14 5 8.000 6.200 100.000 H9/H10 1/2-13 5 9.000 7.000 110.000 H10/H11 9/16-12 5 11.000 9.000 110.000 H10/H11 5/8-11 5 12.000 9.000 110.000 H11/H12 3/4-10 7 14.000 11.000 125.000 H12/H13 UNC / UNF Order No. 2BX Class of Fit 4.826 5.486 6.350 7.938 9.525 11.113 l l ° ° 12.700 Through or Blind Hole 14.288 15.875 19.050 ANSI length - ANSI shank Series 3941 - Cobalt, UNF, form tap, TiN coated Series 3944 - Cobalt, UNF, form tap, TiCN coated C · 2-3 No. Lube Shank dia. Square Size Overall Length 2BX Approx. Series Series Order Size Grooves inch inch inch Limits 3941 3944 No. 4-48 4 0.141 0.110 1.882 H4/H5 5-44 4 0.141 0.110 1.941 H4/H5 6-40 4 0.141 0.110 2.000 H5/H6 8-36 4 0.168 0.131 2.130 H4/H5 10-32 4 0.194 0.152 2.382 H5/H6 12-28 4 0.220 0.165 2.382 H6/H7 1/4-28 4 0.255 0.191 2.500 H6/H7 5/16-24 5 0.318 0.238 2.720 H7/H8 l l l l l l l l l l l l l l l l l l l l l l l l l l l l 2.845 3/8-24 5 0.381 0.286 2.941 H7/H8 7/16-20 5 0.323 0.242 3.157 H8/H9 1/2-20 5 0.367 0.275 3.381 H8/H9 9/16-12 5 0.429 0.322 3.591 H8/H9 5/8-18 5 0.480 0.360 3.811 H9/H10 3/4-16 7 0.590 0.442 4.252 H10/H11 ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 3.175 3.505 4.166 4.826 5.486 6.350 7.938 9.525 11.113 12.700 14.288 15.875 19.050 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 123 Form Taps Chamfer Lead Thread Forming Taps ANSI length - ANSI shank UNF 2BX Class of Fit Form Taps Through or Blind Hole Series 3972 - Cobalt, UNF, form tap, TiN coated, Form E chamfer No. Lube Shank dia. Square Size Overall Length 2BX Approx. Series Order Size Grooves inch inch inch Limits 3972 No. 4-48 4 0.141 0.110 1.882 H4/H5 5-44 4 0.141 0.110 1.941 H4/H5 6-40 4 0.141 0.110 2.000 H5/H6 l l l l l l l l l l l l 2.845 8-36 4 0.168 0.131 2.130 H4/H5 10-32 4 0.194 0.152 2.382 H5/H6 1/4-28 4 0.255 0.191 2.500 H6/H7 5/16-24 5 0.318 0.238 2.720 H7/H8 3/8-24 5 0.381 0.286 2.941 H7/H8 7/16-20 5 0.323 0.242 3.157 H8/H9 1/2-20 5 0.367 0.275 3.381 H8/H9 9/16-18 5 0.429 0.322 3.591 H8/H9 5/8-18 5 0.480 0.360 3.811 H9/H10 3.175 3.505 4.166 4.826 6.350 7.938 9.525 11.113 12.700 14.288 15.875 Chamfer Lead DIN length - DIN shank E · 1.5 - 2 Series 1584 - Cobalt, UNF, form tap, TiN coated, DIN 371, Form C chamfer No. Lube C · 2-3 Shank dia. Square Size Overall Length 2BX DIN 371 Approx. Series Order Size Grooves mm mm mm Limits 1584 No. 10-32 4 6.000 4.900 70.000 H5/H6 ° ° ° ° ° 4.826 12-28 4 6.000 4.900 80.000 H6/H7 1/4-28 4 7.000 5.500 80.000 H6/H7 5/16-24 5 8.000 6.200 90.000 H7/H8 3/8-24 5 10.000 8.000 100.000 H7/H8 5.486 6.350 7.938 9.525 DIN length - DIN shank Series 1585 - Cobalt, UNF, form tap, TiN coated, DIN 376, Form C chamfer No. Lube 124 Bright Shank dia. Square Size Overall Length 2BX DIN 376 Approx. Series Order Size Grooves mm mm mm Limits 1585 No. 7/16-20 5 8.000 6.200 100.000 H8/H9 1/2-20 5 9.000 7.000 100.000 H8/H9 9/16-18 5 11.000 9.000 100.000 H8/H9 5/8-18 5 12.000 9.000 100.000 H9/H10 3/4-16 7 14.000 11.000 110.000 H10/H11 l l ° ° ° 11.113 Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN 12.700 14.288 15.875 19.050 FIREX® Thread Forming Taps ANSI length - ANSI shank Series 3939 - Cobalt, Metric, form tap, TiN coated Series 3942 - Cobalt, Metric, form tap, TiCN coated METRIC 6HX No. Lube Shank dia. Square Size Overall Length Size Grooves inch inch inch Limits 3939 3942 No. M3 X 0.50 4 0.141 0.110 1.941 D5/D6 4 0.168 0.131 2.130 D6/D7 M5 X 0.80 4 0.194 0.152 2.382 D7/D8 M6 X 1.00 4 0.255 0.191 2.500 D8/D9 M8 X 1.25 5 0.318 0.238 2.720 D9/D10 M10 X 1.50 5 0.381 0.286 2.941 D10/D11 M12 X 1.75 5 0.367 0.275 3.381 D11/D12 M14 X 2.00 5 0.429 0.322 3.591 D13/D14 M16 X 2.00 5 0.480 0.360 3.811 D13/D14 l l l l l l l l l l l l l l l l l l 3.000 M4 X 0.70 Approx. Series Series Order 6HX Class of Fit 4.000 5.000 6.000 8.000 10.000 Through or Blind Hole 12.000 14.000 16.000 ANSI length - ANSI shank C · 2-3 Series 3979 - Cobalt, Metric, form tap, TiN coated, Form E chamfer 6HX No. Lube Shank dia. Square Size Overall Length Size Grooves inch inch inch Limits 3979 No. M3 X 0.50 4 0.141 0.110 1.941 D5/D6 3.000 M4 X 0.70 4 0.168 0.131 2.130 D6/D7 M5 X 0.80 4 0.194 0.152 2.382 D7/D8 M6 X 1.00 4 0.255 0.191 2.500 D8/D9 M8 X 1.25 5 0.318 0.238 2.720 D9/D10 M10 X 1.50 5 0.381 0.286 2.941 D10/D11 M12 X 1.75 5 0.367 0.275 3.381 D11/D12 M14 x 2.00 5 0.429 0.322 3.591 D13/D14 M16 x 2.00 5 0.480 0.360 3.811 D13/D14 l l l l l l l l l ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS Approx. Series Order E · 1.5 - 2 4.000 5.000 6.000 8.000 10.000 12.000 14.000 16.000 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 125 Form Taps Chamfer Lead Thread Forming Taps DIN length - DIN shank METRIC Series 919 - Cobalt, Metric, form tap, TiN coated, DIN 371, form C chamfer Series 1717 - PM cobalt, Metric, form tap, AlCrN, DIN 371, radial coolant, form C chamfer 6HX Class of Fit Through or Blind Hole No. Lube Shank dia. Square Size DIN 371 DIN 371 Approx. Series Series 1717 6HX Overall Length Size Grooves mm mm mm Limits 919 M3 X 0.50 4 3.500 2.700 56.000 D5/D6 l ° l l l l l M3.5 X 0.60 4 4.000 3.000 56.000 D6/D7 M4 X 0.70 4 4.500 3.400 63.000 D6/D7 M5 X 0.80 4 6.000 4.900 70.000 D7/D8 M6 X 1.00 4 6.000 4.900 80.000 D8/D9 M8 X 1.25 5 8.000 6.200 90.000 D9/D10 M10 X 1.50 5 10.000 8.000 100.000 D10/D11 Order No. 3.000 3.500 4.000 l ° l l 5.000 6.000 8.000 10.000 DIN length - DIN shank Form Taps Series 323 - PM cobalt, Metric, form tap, TiN coated, DIN 371, radial coolant, form C chamfer Chamfer Lead No. Lube C · 2-3 Shank dia. Square Size DIN 371 6HX Overall Length Approx. Series Order Size Grooves mm mm mm Limits 323 No. M5 X 0.80 4 6.000 4.900 70.000 D7/D8 5.000 M6 X 1.00 4 6.000 4.900 80.000 D8/D9 M8 X 1.25 5 8.000 6.200 90.000 D9/D10 M10 X 1.50 5 10.000 8.000 100.000 D10/D11 l l l l 6.000 8.000 10.000 E · 1.5 - 2 DIN length - DIN shank Series 1972 - Carbide, Metric, form tap, **TiCN coated DIN 371, radial coolant, form C chamfer Series 1927 - Carbide, Metric, form tap, **TiCN coated, DIN 371, radial coolant, Form E chamfer DIN 371 DIN 371 Approx. Series Series Order 6HX No. Lube Shank dia. Square Size Overall Length Size Grooves inch inch inch Limits 1972 1927 No. *M3 X 0.50 4 3.500 2.700 56.000 D5/D6 4 4.500 3.400 63.000 D6/D7 M5 X 0.80 4 6.000 4.900 70.000 D7/D8 M6 X 1.00 4 6.000 4.900 80.000 D8/D9 M8 X 1.25 5 8.000 6.200 90.000 D9/D10 M10 X 1.50 5 10.000 8.000 100.000 D10/D11 ° ° l l l l l l ° l l l 3.000 *M4 X 0.70 4.000 5.000 6.000 8.000 10.000 * Sizes <M5 do not have coolant ducts through the tap **All carbide form taps will be changing to TiCN coating as inventory levels are replenished. 126 Bright Steam Oxide TiN TiCN MolyGlide TiAlN AlCrN FIREX® Thread Forming Taps DIN length - DIN shank Series 342 - PM cobalt, Metric,form tap, TiN coated, DIN 376, radial coolant Series 1719 - PM cobalt, Metric, form tap, AlCrN, DIN 376, radial coolant DIN 376 DIN 376 Approx. Series Series Order Limits 342 1719 No. l l l 6HX No. Lube Shank dia. Square Size Overall Length Size Grooves mm mm mm M12 X 1.75 5 9.000 7.000 110.000 D11/D12 M14 X 2.00 5 11.000 9.000 110.000 D13/D14 M16 X 2.00 5 12.000 9.000 110.000 D13/D14 M12 X 1.75 5 9.000 7.000 110.000 D11/D12 M14 X 2.00 5 11.000 9.000 110.000 D13/D14 M16 X 2.00 5 12.000 9.000 110.000 D13/D14 M20 X 2.50 7 16.000 12.000 140.000 D14/D15 METRIC / METRIC FINE 12.000 14.000 16.000 ° ° ° l 6HX Class of Fit 12.000 14.000 16.000 20.000 Through or Blind Hole DIN length - DIN shank Form Taps Series 1931 - Carbide, Metric, form tap, **TiCN coated, DIN 376, radial coolant Size No. Lube Shank dia. Square Size Overall Length Grooves mm mm mm 6HX DIN 376 Approx. Series Order Limits 1931 No. l ° ° ° ° 12.000 Approx. Series Order M12 X 1.75 5 9.000 7.000 110.000 D11/D12 M14 X 2.00 5 11.000 9.000 110.000 D13/D14 M16 X 2.00 5 12.000 9.000 110.000 D13/D14 M18 X 2.50 6 14.000 11.000 125.000 D14/D15 M20 X 2.50 7 16.000 12.000 140.000 D14/D15 Chamfer Lead 14.000 16.000 C · 2-3 18.000 20.000 ** All carbide form taps will be changing to TiCN coating as inventory levels are replenished. ANSI length - ANSI shank Series 3975 - Cobalt, Metric Fine, form tap, TiN coated 6HX No. Lube Shank dia. Square Size OAL Size Grooves inch inch inch Limits 3975 No. M6 x 0.75 4 0.255 0.191 2.500 D6/D7 l l l l l l l l l l l l 6.004 M8 X 1.00 5 0.318 0.238 2.720 D7/D8 M10 X 1.00 5 0.381 0.286 2.941 D7/D8 M10 X 1.25 5 0.381 0.286 2.941 D7/D8 M12 X 1.00 5 0.367 0.275 3.381 D7/D8 M12 X 1.25 5 0.367 0.275 3.381 D7/D8 M12 X 1.50 5 0.367 0.275 3.381 D8/D9 M14 X 1.25 5 0.429 0.322 3.591 D9/D10 M14 X 1.50 5 0.429 0.322 3.591 D10/D11 M16 X 1.50 5 0.480 0.360 3.811 D10/D11 M18 x 1.50 7 0.542 0.406 4.031 D10/D11 M20 x 1.50 7 0.652 0.489 4.469 D11/D12 ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 8.005 10.005 10.006 12.005 12.006 12.007 14.006 14.007 16.007 18.007 20.007 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 127 Thread Forming Taps DIN length - DIN shank METRIC FINE 6HX Class of Fit Form Taps Through or Blind Hole Chamfer Lead C · 2-3 Series 927 - Cobalt, Metric Fine, form tap, TiN coated, DIN 374 No. Lube Shank dia. Square Size Overall Length Grooves mm mm mm Size DIN 374 6HX Approx. Series Order Limits 927 No. l ° l ° l l l l ° l ° l ° l ° l l ° 6.004 M6 X 0.75 4 4.500 3.400 80.000 D6/D7 M8 X 0.75 5 6.000 4.900 80.000 D7/D8 M8 X 1.00 5 6.000 4.900 90.000 D7/D8 M10 X 1.00 5 7.000 5.500 90.000 D7/D8 M10 X 1.25 5 7.000 5.500 100.000 D7/D8 M12 X 1.00 5 9.000 7.000 100.000 D7/D8 M12 X 1.25 5 9.000 7.000 100.000 D7/D8 M12 X 1.50 5 9.000 7.000 100.000 D8/D9 M14 X 1.00 5 11.000 9.000 100.000 D8/D9 M14 X 1.50 5 11.000 9.000 100.000 D10/D11 M16 X 1.00 5 12.000 9.000 100.000 D10/D11 M16 X 1.50 5 12.000 9.000 100.000 D10/D11 M18 X 1.00 7 14.000 11.000 110.000 D10/D11 M18 X 1.50 7 14.000 11.000 110.000 D10/D11 M20 X 1.00 7 16.000 12.000 125.000 D11/D12 M20 X 1.50 7 16.000 12.000 125.000 D11/D12 M22 X 1.50 7 18.000 14.500 125.000 D11/D12 M24 X 1.50 7 18.000 14.500 140.000 D11/D12 8.004 8.005 10.005 10.006 12.005 12.006 12.007 14.005 14.007 16.005 16.007 18.005 18.007 20.005 20.007 22.007 24.007 DIN length - DIN shank Series 338 - PM cobalt, Metric Fine, form tap, TiN coated, DIN 374, radial coolant Series 1723 - PM cobalt, Metric Fine, form tap, AlCrN, DIN 374, radial coolant No. Lube 128 Bright Shank dia. Square Size Overall Length DIN 374 DIN 374 Approx. Series Series 1723 6HX Size Grooves mm mm mm Limits 338 M8 X 1.00 5 6.000 4.900 90.000 D7/D8 ° ° ° M10 X 1.00 5 7.000 5.500 90.000 D7/D8 M12 X 1.00 5 9.000 7.000 100.000 D7/D8 M12 X 1.25 5 9.000 7.000 100.000 D7/D8 M12 X 1.50 5 9.000 7.000 100.000 D8/D9 M14 X 1.50 5 11.000 9.000 100.000 D10/D11 M16 X 1.50 5 12.000 9.000 100.000 D10/D11 M18 X 1.50 7 14.000 11.000 110.000 D10/D11 M20 X 1.50 7 16.000 12.000 125.000 D11/D12 M24 X 1.50 7 18.000 14.500 140.000 D11/D12 Steam Oxide TiN TiCN MolyGlide ° l ° TiAlN Order No. 8.005 10.005 ° l ° l l l ° ° AlCrN 12.005 12.006 12.007 14.007 16.007 18.007 20.007 24.007 FIREX® Thread Forming Taps DIN length - DIN shank Series 1721 - PM cobalt, Metric Fine, form tap, AlCrN, DIN 371, radial coolant 6HX DIN 371 No. Lube Shank dia. Square Size Overall Length Size Grooves mm mm mm Limits 1721 No. ° ° l 10.005 Approx. Series Order M8 X 1.00 5 8.000 6.200 90.000 D7/D8 M10 X 1.00 5 10.000 8.000 90.000 D7/D8 M10 X 1.25 5 10.000 8.000 100.000 D7/D8 8.005 METRIC FINE 6HX Class of Fit 10.006 Through or Blind Hole DIN length - DIN shank Series 1581 - Carbide, Metric Fine, form tap, **TiCN coated, DIN 374, radial coolant Shank dia. Square Size 6HX DIN 374 Approx. Series Order Size Grooves mm mm mm Limits 1581 No. M10 X 1.00 5 10.000 8.000 90.000 D7/D8 M12 X 1.00 5 10.000 8.000 100.000 D7/D8 M12 X 1.50 5 10.000 8.000 100.000 D8/D9 M14 X 1.00 5 11.000 9.000 100.000 D8/D9 M14 X 1.25 5 11.000 9.000 100.000 D9/D10 M14 X 1.50 5 11.000 9.000 100.000 D10/D11 M16 X 1.50 5 12.000 9.000 100.000 D10/D11 M18 X 1.50 7 14.000 11.000 110.000 D10/D11 M20 X 1.50 7 16.000 12.000 125.000 D11/D12 M24 X 1.50 7 18.000 14.500 140.000 D11/D12 ° ° l ° ° ° ° ° ° ° 10.005 Chamfer Lead 12.005 12.007 14.005 14.006 C · 2-3 14.007 16.007 18.007 20.007 24.007 All carbide form taps will be changing to TiCN coating as inventory levels are replenished. ● 53!æ3TOCK ❍ )NTERNATIONALæ3TOCKææWKS 7HENæORDERINGæ%$0æNOææ3ERIESææ/RDERæNOæIEæææ 129 Form Taps No. Lube Overall Length Technical Information General Purpose Alloyed & Unalloyed Steels Stainless Steels High Tensile, Tool Steels Cast Iron Aluminum and Alloys Titanium or Nickel 131 Definitions and angles, centers and flute forms CHAMFERæLEADæ LENGTH æ SHANKæDIA LENGTHæOFæDRIVINGæ SQUARE DRIVINGæ SQUARE THREADæ DIA THREADæ LENGTH FLUTEææ LENGTH OVERALLæLENGTH INCLUDEDæANGLEæ OFæTHREAD Dæ GF!æ Aæ Gæ TRYæSQUARE SPIRALæPOINTæANGLE CLEARANCEæANGLE RAKEæANGLE LAND WIDTHæOFææ LAND CHAMFERæ fA DIA WIDTHæOFæ FLUTE FLUTE CHAMFER WEBæDIA THREADææ PITCH Flute forms STRAIGHTæFLUTEDæFORMæ#æ without spiral point HELIXæANGLEæ STRAIGHTæFLUTEDæFORMæ"æ with spiral point HELIXæANGLEæ 4YPESæOFæCENTERSæSTANDARDæTOæ$).æ$).æææ Note: DIN standard taps < 10.0mm diameter are manufactured with male centers 4 SOLIDæCONE SOLIDæCONE 1 Technical STEPPEDæCONE 2 ONæCUTTINGæ SECTION ONæ SHANK 5 CHAMFER INTERNALæCENTERæ FORMæ!æORæ2æTOæ$).ææ 3 ACCæTOæMANUFACTæSPECIFICATION æ 4HREADæDIAæRANGEæ MM éæ ææxæ ææxæ æ INTERNALæCENTERæ 6 FORMæ!æORæ2æTOæ$).ææ ACCæTOæMANUFACTæSPECIFICATION #ENTERæONæCUTTINGæSECTION WITHæCHAMFERæFORMSææ !æ#æ$æ% WITHæCHAMFERæFORMæ " #ENTERæONæSHANKæ ➀ ➀➁ ➀➁➂ ➂ ➀ ➀ ➀➁➂ ➂ ➃➄➅ ➃➄➅ ➃➄➅ ➅ Coolant duct geometries AXIALæCOOLANTææ DELIVERYæ WITHæAXIALæCOOLANTææ DUCTæEXIT 132 AXIALæCOOLANTææ DELIVERYæWITHæRADIALææ COOLANTæDUCTæEXITæINæTHEæFLUTESææ ATæTHEæCHAMFER Chamfer forms, selection and application !PPLICATIONæRECOMMENDATIONS 4HEæTYPEæOFæTAPPEDæHOLEæREQUIREDæDETERMINESæTHEæCHAMFERæ 'ENERALLYæTHEæTAPæGEOMETRYææIEæFORMæNUMBERæANDæDIRECTIONæ OFæ FLUTESæ CUTTINGæ ANGLEæ ETCæ æ DEPENDæ ONæ THEæ MATERIALæ TOæ BEæ MACHINEDæ ANDæ ONæ THEæ APPLICATIONæ "ASICALLYæ TAPSæ UPæ TOæ -æFORæTAPPINGæ)3/æMETRICæTHREADSæORæFORæTHEæENGINEERINGæ INDUSTRYæINæGENERALæHAVEææFLUTESæANDæABOVEæTHISæSIZEææORæ MOREæFLUTES æ 4APSæWITHæLEFTHANDæFLUTESæANDæTAPSæWITHæSPIRALæPOINTSæREMOVEæ THEæCHIPSæINæTHEæCUTTINGæDIRECTIONæORæDIRECTIONæOFæFEEDæANDæAREæ THEREFOREæESPECIALLYæSUITABLEæFORæTAPPINGæTHROUGHæHOLESæ4APSæ WITHæSTRAIGHTæFLUTESæANDæLONGæCHAMFERæLEADæFORMæ$æALSOæGIVEæ GOODæRESULTS æ !Sæ FARæ ASæ BLINDæ HOLESæ AREæ CONCERNEDæ WEæ RECOMMENDæ TAPSæ WITHæ RIGHTHANDæ SPIRALæ FLUTESæ ORæ STRAIGHTæ FLUTEDæ TAPSæ WITHæ Aæ SHORTæCHAMFERæLEADæLENGTHæ4OOLSæWITHæRIGHTHANDæSPIRALæFLUTESæ HAVEæ THEæ CHIPæ FLOWæ INæ THEæ BACKWARDæ DIRECTIONæ IEæ UPæ THEæ FLUTESæ4HEæCHAMFERæLEADæLENGTHæISæDESIGNEDæINæSUCHæAæWAYæSOæ THATæDURINGæTHEæRETURNæMOVEMENTæCHIPSæDOæNOTæJAMæANDæAREæ RELIABLYæSHEAREDæOFF æ 4HEæTAPPINGæOFæALUMINIUMæGREYæCASTæIRONæANDæBRASSæREQUIRESæ TAPSæWITHæAæSHORTæCHAMFERæLEADæLENGTHæREGARDLESSæOFæWHETHERæ THROUGHæ ORæ BLINDæ HOLESæ AREæ REQUIREDæ )Næ THESEæ MATERIALSæ Aæ LONGæCHAMFERæLEADæLENGTHæWOULDæACTæASæAæCOREæDRILLæWITHæCHIPæ BREAKERæGROOVESæANDæWOULDæONLYæDRILLæTHEæTAPPINGæSIZEæHOLEæ TOæTHEæMAJORæDIAMETERæINSTEADæOFæCUTTINGæAæTHREAD æ 3TRAIGHTæFLUTEDæTAPSæWITHOUTæSPIRALæPOINTæAREæGENERALæPURPOSEæ TOOLSæANDæHAVEæTHEæDISADVANTAGEæOFæNOTæSHOWINGæOPTIMUMæ RESULTSæ INæ PARTICULARæ MATERIALSæ )TSæ WELLæ WORTHæ THEæ EFFORTæ TOæ TAKEæ THEæ TROUBLEæ OFæ ASCERTAININGæ THEæ MOSTæ SUITABLEæ TOOLæ FORæ ANYæGIVENæMETALCUTTINGæTASK #HAMFERæFORMSæTOæ$).æ &ORMæ! xæTHREADS LONGææææTHREADSæ FORæSHORTæ THROUGHæHOLES Form B xæTHREADS MEDIUMææææTHREADSæ WITHæSPIRALæPOINTææ FORæALLæTHROUGHæHOLESæ INæMEDIUMæANDæLONGCHIPPINGæMATERIALS Form C SHORTææææTHREADSæ FORæBLINDæHOLESæ ANDæGENERALLYæFORæ ALUMINIUMæGREYæCASTæIRONæ ANDæBRASS xæTHREADS MEDIUMææææTHREADSæ FORæSHORTæ THROUGHæHOLESæANDæBLINDæHOLESæ WHEREæTAPæDRILLæCLEARANCEæPERMITS xæTHREADS EXTREMELYæSHORTææTHREADSææ FORæBLINDæHOLESæWITHæ LITTLEæRUNOUTæDEPTHæ !VOIDæUSEæIFæPOSSIBLE xæTHREADS EXTREMELYæSHORTææTHREADSæ FORæBLINDæHOLESæWITHæ LITTLEæRUNOUTæDEPTHæ !VOIDæUSEæIFæPOSSIBLE Technical xæTHREADS Form D &ORMæ% Form F 133 4APæ4OLERANCESæANDæ!PPROXIMATEæ,IMITS 5.#5.&æ4APS 3CREWæSIZEæANDæFRACTIONALæTHREADSæAREæTYPICALLYæSPECIFIEDæASæ ONEæOFæTHREEæCLASSESæOFæFITæ#LASSæ"ænæFORæLOWæPRECISIONæORæ THREADSæTHATæAREæTYPICALLYæUSEDæINæAREASæWHEREæDIRTæANDæGRIMEæ AREæAæCONSTANTæFACTORæ#LASSæ"æFORæGENERALæTHREADINGæAPPLICA TIONSæBYæFARæTHEæMOSTæCOMMONæANDæ#LASSæ"æFORæPRECISIONæ THREADSæGENERALLYæFOUNDæINæMEDICALæAEROSPACEæANDæAPPLI CABLEæAUTOMOTIVEæAPPLICATIONSææ sæ!SæSEENæINæTHEæCHARTænæTHESEæCLASSESæOFæFITæDOæOVERLAPæEVENæ THOUGHæTHEYæAREæPROGRESSIVEæINæACCURACYæ4OæFURTHERæBREAKæ DOWNæTHEæACCURACYæOFæTHESEæTHREADSæWEæHAVEæh(væLIMITSæINæ INCREMENTSæOFævæ æ sæ%VERYæSIZEPITCHæTAPæHASæAæSPECIFICæORæGIVENæBASICæPITCHæ DIAMETERæTHATæISæTHEæBASISæFORæTHEæh(væLIMITSæANDæTHEæCLASSæOFæ FITæFORæTHATæSIZEæ æ sæ!SæYOUæCANæSEEæINæTHEæCHARTænæTHEæCLASSæOFæFITæWILLæGIVEæYOUæ MINIMUMæANDæMAXIMUMæPITCHæDIAMETERæLIMITSæTHATæNEEDæTOæ BEæMAINTAINEDæDURINGæMANUFACTURINGæTYPICALLYæTHESEæAREæ YOURæTHREADæGAUGEæLIMITSæ"YæSEEINGæTHEæh(væLIMITSæILLUSTRAT EDæYOUæAREæBETTERæABLEæTOæUNDERSTANDæWHATæAREAæOFæTHEæCLASSæ OFæFITæYOUæAREæACTUALLYæWORKINGæWITHINæ 4HISæCHARTæDOESæNOTæSHOWæAæSPECIFICæSIZEæTAPænæITSæPURPOSEæISæ TOæGIVEæAæVISUALæUNDERSTANDINGæOFæHOWæTHEæh(væLIMITSæWORKæ WITHINæTHEæDIFFERENTæCLASSESæOFæFIT +0.0080 +0.0075 +0.0070 +0.0065 +0.0060 +0.0055 H11 +0.0050 H10 +0.0045 H9 +0.0040 H8 +0.0035 H7 +0.0030 H6 +0.0025 H5 +0.0020 H4 +0.0015 H3 +0.0010 H2 +0.0005 Basic H1 -0.0005 1B 2B 3B Basic P.D. Technical Metric Taps -ETRICæTHREADSæHAVEæTHEIRæOWNæCLASSIFICATIONSæFORæCLASSæOFæFITæ ANDæTHEæTHREADæLIMITSæWITHINæTHEMæ7HENæDISCUSSINGæ5.# 5.&æTHREADSæWEæWORKEDæWITHæ"æ"æANDæ"æ#LASSESæOFæFITæ ANDæHADæh(væLIMITSæWHICHæHELPEDæDEFINEæTHEæACCURACYæWITHINæ EACHæCLASSæ4OæHELPæUNDERSTANDæ-ETRICæTOLERANCINGæITæMAYæBEæ EASIESTæTOæLOOKæATæTHEæSIMILARITIESæBETWEENæBOTHæ-ETRICæANDæ &RACTIONALæTOLERANCINGææ sæ!æMETRICæ(æCLASSæOFæFITæISæQUITEæSIMILARæTOæTHEæFRACTIONALæ"æ CLASSæOFæFITæææASæISæTHEæMETRICæ(æTOæTHEæFRACTIONALæ"æ7EæWILLæ FOCUSæONæTHEæ(æCLASSæOFæFITæASæTHISæISæOURæSTANDARDæOFFERINGæ INæMETRICæSIZESæ0LEASEæNOTEæTHATæSPECIALæCLASSESæOFæFITæCANæBEæ PRODUCEDæFORæANYæGIVENæAPPLICATIONæUPONæREQUEST æ sæ!GAINænæTHEæCLASSæOFæFITæWILLæGIVEæYOUæMINIMUMæANDæMAXI MUMæPITCHæDIAMETERæLIMITSæTHATæNEEDæTOæBEæMAINTAINEDæ DURINGæMANUFACTURINGæ7ITHINæTHEæCLASSæOFæFITænæMETRICæTHREADæ LIMITSæAREæFURTHERæBROKENæDOWNæINTOæh$væLIMITSæ%ACHæh$væ LIMITæEQUALSæMMæMMæævænæEXTREMELYæ SIMILARæTOæTHATæOFæFRACTIONALæh(væLIMITæTOLERANCINGæ æ sæ!SæYOUæLOOKæATæTHISæCHARTæYOUæCANæSEEæHOWæTHEæh$væLIMITSæ HELPæCONTROLæWHATæAREAæOFæTHEæCLASSæOFæFITæYOUæAREæWORKINGæ WITHIN 4HISæCHARTæDOESæNOTæSHOWæAæSPECIFICæSIZEæTAPænæITSæPURPOSEæISæ TOæGIVEæAæVISUALæUNDERSTANDINGæOFæHOWæTHEæh$væLIMITSæWORKæ WITHINæAæCLASSæOFæFIT 134 +0.208 mm +0.195 mm +0.182 mm +0.169 mm +0.156 mm +0.143 mm +0.130 mm +0.117 mm +0.104 mm +0.091 mm +0.078 mm +0.065 mm +0.052 mm +0.039 mm +0.026 mm +0.013 mm Basic -0.013 mm 6H D10 D9 D8 D7 D6 D5 D5 (shown w/mfg. tolerance) D4 D3 D2 D1 Basic P.D. 4APSæFORæ)3/æMETRICæTHREADSæ$).æ%.ææEXTRACT Profile of the nut thread Basic profile: $ MAJORæDIAMETER $ NOMæDIAæOFæTAPPINGæSIZEæHOLE $ BASICæPITCHæDIAMETER 0 PITCHæOFæDIAMETER æ INCLUDEDæANGLEæOFæTHREAD (æ HEIGHTæOFæPEAKæTOæPEAK æ THREADæPROFILE %Læ BASICæDEVIATIONæOFæPITCHæZERO WITHæTOLERANCEæZONEæ(æPOSITIVE WITHæTOLERANCEæZONEæ' Profile of the tap Tolerances: 4$æ TOLERANCEæONæTAPPINGæSIZEæHOLEæDIA 4$æ TOLERANCEæONæTAPæPITCHæDIA 7ITHæTHEæAIMæOFæUNIFYINGæTHREADSæONæANæINTERNATIONALæBASISæ THEæ)3/æTHREADæWASæBROUGHTæOUTæANDæHASæBEENæACCEPTEDæBYæ ALLæCONCERNEDæ4ODAYæTHEæ)3/æMETRICæTHREADæISæTHEæMOSTæCOM MONæTYPEæ!SæYOUæCANæSEEæOURæTAPæPROGRAMæDEMONSTRATESæ THISæFACTæINæTHEæCLEARESTæPOSSIBLEæWAY Basic profile: D$ MAJORæDIAMETER DæMINæ DæMINæPERMISSIBLEæMINæTAPæMAJORæDIA *Sæ MINIMUMæCLEARANCEæONæMAJORæ DIAMETER D$ BASICæPITCHæDIAMETER DæMINæ MINIMUMæTAPæPITCHæDIAMETER DæMAXæ MAXIMUMæTAPæPITCHæDIAMETER %Sæ UPPERæDEVIATIONæOFæPITCHæDIAMETER %M LOWERæDEVIATIONæOFæPITCHæDIAMETER Tolerance: æ4Dæ TOLERANCEæONæTAPæPITCHæ DIAMETER 4APSæWITHæDEVIATINGæTOLERANCESæACCORDINGæTOæ$).ææPARTææ WILLæBEæGIVENæADDITIONALæMARKINGæh8vææ(8ææ'8 æ 7EæRECOMMENDæTHEæAPPLICATIONæOFæTAPSæINæACCORDANCEæWITHæ THEæADJACENTæTABLE -ETRICæTOLERANCEæQUALITIESæFIGUREæIDENTIFICATION 4OLERANCEæZONEææTOLERANCEæCLASSæALLOCATIONæææ 4OLERANCEæ QUALITIESæ OFæ EXTERNALæ THREADSæ AREæ DEFINEDæ BYæ THEæ .UTæTHREADTOLERANCEæZONES TABLEæTOæTHEæRIGHTæTHOSEæOFæNUTæTHREADSæBYæTHEæTABLEæONæTHEæ 4APæTHREADTOLERANCEæCLASSES LOWERæRIGHT 4OLERANCEæZONESæNUTæTHREAD 4OLERANCEæCLASSESæTAPæTHREAD 1UALITYæ ANDæ POSITIONæ OFæ TOLERANCEæ DETERMINEæ THEæ TOLERANCEæ ZONEæ WHICHæ ISæ IDENTIFIEDæ BYæ THEæ APPROPRIATEæ FIGURESæ ANDæ LETTERS 4HEæABBREVIATIONæFORæTHEæTOLERANCEæCLASSæOFæTAPæCORRESPONDSæ TOæTHEæTOLERANCEæZONEæOFæTHEæINTERNALæTHREADæFORæWHICHæTHEæTAPæ ISæUSEDæINæMOSTæCASESæ4HEREFOREæITæISæNOTæIDENTICALæWITHæTHEæ TOLERANCEæZONEæOFæTHEæCUTæNUTæTHREADæINæEVERYæAPPLICATION 4OLERANCEæINæ±M ' ' ( (8 ( (8 ( ( '8 '8 ' ' $).æ%.æ $).ææPARTææ WITHDRAWN 4OLERANCEæZONEæ OFæINTERNALæ THREADæTOæBEæCUT !PPLICATIONæCLASSæ OFæTAPæ æ$ESIGNATION æææææææææ2EFERENCE 4OLERANCEæCLASSæ OFæTAP (æ ( ( #LASSææ )3/ææ #LASSææ )3/ææ æ æ ( #LASSææ )3/ææ æ æ æ ' ææææænæ næ æ æ æ æ ( ' ' ' æ4HEæTOLERANCEæOFæTHEææAPPLICATIONæCLASSESæISæCALCULATEDæINæACCORDANCEæTOæ THEæFOLLOWINGæDATAæDEPENDENTæONæONEæTOLERANCEæUNITæTæTHEæVALUEæOFæWHICHæ CORRESPONDSæTOæTHEæVALUEæOFæTHEæBASICæPITCHæDIAMETERæ4$æINæTOLERANCEæCLASSæ æOFæTHEæNUTæTHREADæPOLISHEDæTOæAæPITCHæOFææMMææ TææT$ææ4OLERANCEæCLASSææOFæNUTæTHREAD 135 Technical 4OLERANCEæPOSITIONSæLETTERæIDENTIFICATION )3/æMETRICæINTERNALæTHREADSæAREæIDENTIFIEDæBYæCAPITALæLETTERSæ !æTOæ(æ)3/æMETRICæEXTERNALæTHREADSæBYæSMALLæLETTERSæAæTOæHæ 4OLERANCEæ ZONESæ!æ TOæ 'æ HAVEæ POSITIVEæ ANDæ Aæ TOæ Gæ NEGATIVEæ BASICæPITCHæDEVIATIONSæINæCONTRASTæTOæTHEæTOLERANCEæZONESæ(æ ANDæHæWHICHæCOMMENCEæATæZEROæ'ENERALLYæTOLERANCEæZONESæ (æANDæGæAREæUSEDæ&ORæTHREADSæDESTINEDæFORæSURFACEæTREATMENTæ TOLERANCEæZONESæ'æANDæEæAREæAPPLIED æ 7HENæ MANUFACTURINGæ )3/EXTERNALæ THREADSæ THEæ DEVIATIONSæ THATæAREæDETERMINEDæFORæTHEæMAJORæDIAMETERæWITHæREGARDæTOæ THEæTOLERANCEæZONESæAæTOæGæHAVEæTOæBEæTAKENæINTOæACCOUNT 4APSæFORæ)3/æMETRICæTHREADSæ$).æ%.ææEXTRACT Thread clearances and fits &ITSæBETWEENæINTERNALæANDæEXTERNALæTHREADSæAREæSEPARATEDæBYæ Aæ DIAGONALæ STROKEæ ASæ FORæ EXAMPLEæ (Gæ INTERNALEXTERNALæ THREADæ4HEæ FITæ HASæ TOæ BEæ SELECTEDæ INæ CONJUNCTIONæ WITHæ THEæ APPROPRIATEæTHREADæCONNECTION 4HEæTOLERANCEæZONESæOFæTHEæTOLERANCEæCLASSESæFINEæMEDIUMæ ANDæCOARSEæAREæALLOCATEDæTOæTHREEæSCREWINæLENGTHSæSHORTæ3æ NORMALæ.æANDæLONGæ,æ'ENERALLYæTHEæFOLLOWINGæRULESæAPPLYæ FORæSELECTINGæAæTOLERANCEæCLASS &INEæTOLERANCEæZONEæ3 &ORæPRECISIONæTHREADSæWHENæONLYæAæSMALLæVARIATIONæINæTHEæFITæ ISæPERMITTED -EDIUMæTOLERANCEæZONEæ. 'ENERALæAPPLICATION Screw-in lengths 4HEæ QUALITYæ OFæ THREADæ CONNECTIONæ ISæ ALSOæ AFFECTEDæ BYæ THEæ SCREWINæ LENGTHæ4HEæ )3/æ TOLERANCEæ SYSTEMæ WASæ ESPECIALLYæ ASæ REGARDSæ THEæ PITCHæ DIAMETERæ DIVIDEDæ INTOæ THREEæ GROUPSæ IE 3æ 3HORTæ .æ .ORMALæ ,æ ,ONGæ æSHORTæSCREWINæLENGTHæ æNORMALæSCREWINæLENGTHæ æLONGæSCREWINæLENGTH 4HEæ FOLLOWINGæ FITæ SHOULDæ BEæ SELECTEDæ FORæ NORMALæ SCREWINæ LENGTHæ. 4Oæ ENSUREæ Aæ TIGHTERæ FITæ OFæ THREADæ CONNECTIONSæ WEæ RECOM MENDæ FORæ SHORTæ SCREWINæ LENGTHSæ Aæ NARROWERæ FITæ!Sæ FARæ ASæ LONGæSCREWINæLENGTHSæAREæCONCERNEDæFITSæWITHæAæLARGERæTOLE RANCEæMUSTæBEæUSEDæTOæCOMPENSATEæFORæPITCHæDEVIATIONS #OARSEæTOLERANCEæZONEæ, 4HEREæ AREæ NOæ SPECIALæ PRECISIONæ REQUIREMENTSæ ANDæ INæ CASESæ WHEREæ PRODUCTIONæ DIFFICULTIESæ MAYæ OCCURæ EGæ THREADæ PRO DUCTIONæINæHOTROLLEDæRODSæDEEPæBLINDæHOLESæORæPLASTICæCOM PONENTS 4HREADæFITSæWITHæDIFFERENTæFLANKæCLEARANCE DIAMETERæ$æ OFæ INTERNALæTHREAD DIAMETERæDæ OFæ EXTERNALæTHREAD DIAMETERæ$æ OFæ INTERNALæTHREAD INTERNALæ THREAD INTERNALæ THREAD Technical EXTERNALæ THREAD EXTERNALæ THREAD :EROæPROFILEæOFæTHREADæFITæWITHOUTæFLANKæCLEARANCEæ(HFIT DIAMETERæ$æ OFæ INTERNALæTHREAD 4HREADæFITæWITHæWIDEæFLANKæCLEARANCEæ'GFITæORæ'EFITæINæEXTERNALæ ANDæINTERNALæTHREAD DIAMETERæDæ OFæ EXTERNALæTHREAD INTERNALæ THREAD EXTERNALæ THREAD 4HREADæFITæWITHæNARROWæFLANKæ(GæORæ(EFITæBYæBASICæDEVIATIONæOFæ EXTERNALæTHREAD 136 DIAMETERæDæ OFæ EXTERNALæTHREAD %XPLANATIONæOFæSYMBOLS $æ $æ $æ Dæ Dæ Dæ 0æ Aæ (æ AOæ AUæ æ æ æ æ æ æ æ æ æ æ æ æNOMæOFæINTERNALæTHREAD 4APPINGæSIZEæHOLEææOFæINTERNALæTHREADæ "ASICæPITCHææOFæINTERNALæTHREAD æNOMæOFæEXTERNALæTHREAD "ASICæPITCHææOFæEXTERNALæTHREAD 4APPINGæSIZEæHOLEææOFæEXTERNALæTHREAD 0ITCH )NCLUDEDæANGLEæOFæTHREAD (EIGHTæOFæPEAKæTOæPEAKæTHREADæPROFILE 5PPERæTOLERANCEæLIMITæ ,OWERæTOLERANCEæLIMITæ Cutting rate recommendations for cut taps -ATERIALæGROUP !PPROXIMATE 2Cæ !PPROXIMATE (" Recommended SFM HSS-E Structural steels, free-cutting steels HSS-E-PM Solid carbide bright finish hard coated bright finish hard coated bright finish hard coated 30-50 40-70 50-70 55-95 - - Unalloyed case hardened steels 20-40 30-70 40-65 40-80 - - Unalloyed heat-treatable steels <25 15-35 25-50 30-60 35-75 - - Structural steels, free-cutting steels <20 40-50 40-75 40-65 40-80 - - Case hardened steels, heat-treatable steels <25 30-45 30-65 30-60 35-75 - - Nitriding steels, spheroidal graphite iron <30 20-30 30-55 30-50 35-65 - - <35 15-25 20-35 25-45 30-60 - - <38 10-25 20-40 20-45 30-55 - - 25-35 40-55 30-55 35-70 - - 20-30 30-40 30-50 35-60 - - Stainless- and acid-resistant steels, sulphured austenitic 20-30 25-40 25-45 30-50 - - 10-20 20-30 20-35 25-50 - - Alloyed case hardened steels 10-20 30-40 30-50 35-70 - - Alloyed heat-treatable steels 25-35 30-50 25-45 35-65 - - Alloyed tool steels <35 15-30 20-40 20-45 30-60 - - High speed tool steels <38 8-15 10-30 15-35 25-55 - - <44 - - 4-10 8-15 4-8 8-16 - - - 4-10 3-6 6-12 50-70 60-90 55-85 65-110 70-100 80-130 martensitic Cast iron <25 30-50 45-85 40-70 60-100 70-100 80-130 Malleable cast iron <35 15-35 20-40 25-45 35-55 60-110 70-120 SILICON CONTENT WROUGHT AlUMINUM < 6% n/a 30-50 50-75 50-70 65-80 80-140 90-165 6-10% n/a 25-35 40-50 40-65 65-80 80-140 90-165 >10% n/a - 25-35 40-65 65-80 60-130 80-140 n/a 30-80 50-65 65-100 - - - - n/a 75-150 35-60 50-65 - - - - Aluminium and Al-alloys Al cast alloys Al wrought alloys Titanium and Ti-alloys Nickel and Ni-alloys 140-275 - - 12-25 20-30 - - 300-380 - - 6-12 10-18 - - 200-300 - - 6-12 10-18 - - - - 3-6 6-12 - - Plastics 15-30 - 20-40 - 30-60 - Magnesium-alloys 90-140 - - - 110-180 - Brass, short-chipping 30-45 - 45-60 - 80-100 - 30-45 - 45-60 - 80-100 - >300 long-chipping Technical Spheroidal graphite iron 137 #UTTINGæ2ATEæRECOMMENDATIONSæFORæFORMFLUTELESSæTAPS 4HANKSæTOæTHEæDEVELOPMENTæOFæMODERNæTOOLæMATERIALSæGEO METRIESæCOATINGSæANDæRECENTLYæTHEæ'UHRINGæDEVELOPEDæIM PROVEDæ TOOLæ SURFACEæ THEæ SCOPEæ OFæ MALLEABLEæ MATERIALSæ ABLEæ TOæBEæFLUTELESSæTAPPEDæISæEXPANDINGææ4HEæTABLEæh#UTTINGæRATEæ RECOMMENDATIONSvæBELOWæPROVIDESæANæOVERVIEWæOFæMATERI ALSæTHATæCANæBEæMACHINEDæWITHæ'UHRINGSæh0ROFILEvæFLUTELESSæ TAPSæ)NæMANYæCASESæAæTESTæINæHARDERæORæMOREæBRITTLEæMATERI ALSæISæWORTHæWHILEæINæORDERæTOæBENEFITæFROMæTHEæADVANTAGESæ OFæ FLUTELESSæ TAPPINGæ INæ THESEæ MATERIALSæ 0LEASEæ CONTACTæ OURæ TECHNICALæSPECIALISTSæFORæADVICE Cutting rate recommendations -ATERIALæGROUP !PPROXIMATE 2Cæ Structural steels, free-cutting steels !PPROXIMATE (" HSS-E HSS-E-PM Solid carbide 45-70 60-90 90-120 Unalloyed case hardened steels 40-65 55-80 75-100 Unalloyed heat-treatable steels <25 30-55 50-75 65-95 Structural steels, free-cutting steels <20 40-65 55-80 75-100 Case hardened steels, heat-treatable steels <25 30-55 50-75 65-95 Nitriding steels, spheroidal graphite iron <30 25-45 40-70 60-85 <35 20-35 35-60 50-75 <38 - - - 40-50 45-60 50-70 35-50 40-55 45-60 Stainless- and acid-resistant steels, sulphured austenitic 25-40 35-50 40-55 - 25-40 30-45 Alloyed case hardened steels 25-45 40-60 55-80 Alloyed heat-treatable steels 20-40 35-55 50-70 Alloyed tool steels <35 15-30 30-50 40-60 High speed tool steels <38 - - - <44 - - - - - - martensitic - - - Spheroidal graphite iron <25 40-65 60-80 75-130 Malleable cast iron <35 40-65 60-80 75-130 SILICON CONTENT WROUGHT AlUMINUM NA 60-75 70-140 100-165 Technical Cast iron Aluminium and Al-alloys Al cast alloys Al wrought alloys NA - - - NA 80-100 100-150 150-200 n/a 80-100 100-150 150-200 Titanium and Ti-alloys 7-26 7-26 20-35 - - - Nickel and Ni-alloys 7-26 7-26 20-35 - - - - - - Plastics - - - 35-50 50-65 75-100 40-65 60-80 80-120 Magnesium-alloys Brass, short-chipping long-chipping 138 Recommended SFM #UTTINGæ3PEEDSæ#ONVERSIONæFORææ4APS Surface Feet per Minute Tap Sizes 5' 10' 15' 20' 25' 30' 40' 50' 60' 70' 80' 90' 100' 110' 120' 130' 140' 150' Revolutions per Minute UNC/UNF Taps No. 2 212 424 637 888 1110 1333 1777 2221 2665 3109 3554 3999 4442 4886 5330 5774 6218 6662 No. 3 191 382 573 772 964 1157 1543 1929 2315 2701 3086 3472 3858 4244 4629 5015 5401 5787 No. 4 174 347 521 682 853 1023 1364 1705 2046 2387 2728 3069 3411 3751 4092 4434 4775 5116 No. 5 147 294 441 611 764 917 1222 1528 1833 2139 2445 2750 3056 3361 3667 3973 4278 4584 No. 6 136 273 409 553 691 829 1106 1382 1659 1935 2212 2488 2766 3042 3318 3595 3871 4148 No. 8 119 239 358 466 583 699 932 1165 1398 1631 1864 2097 2330 2563 2796 3029 3262 3495 No. 10 101 201 302 402 502 603 804 1005 1205 1406 1607 1808 2009 2210 2411 2612 2813 3014 No. 12 87 174 260 354 442 531 707 884 1061 1238 1415 1592 1769 1945 2122 2300 2476 2653 1/4 76 153 229 306 382 458 611 764 917 1070 1222 1375 1528 1681 1833 1968 2139 2292 5/16 62 123 185 245 306 367 489 611 733 856 978 1100 1222 1345 1467 1589 1711 1833 3/8 50 101 151 204 255 305 407 509 611 713 815 917 1019 1120 1222 1324 1426 1528 7/16 43 87 130 175 219 262 349 437 524 611 698 786 873 960 1048 1135 1222 1310 1/2 38 76 115 153 191 229 305 382 458 535 611 688 764 840 917 993 1070 1146 9/16 34 68 102 137 172 206 274 342 410 478 547 616 683 752 820 888 952 1020 5/8 32 64 96 122 153 183 244 306 367 428 489 550 611 672 733 794 856 917 11/16 28 55 83 111 138 167 222 278 333 389 444 500 556 611 667 722 778 833 3/4 25 51 76 102 128 153 203 255 305 357 407 458 509 560 611 662 713 764 7/8 22 43 65 87 109 131 175 218 262 306 350 392 437 480 524 568 611 655 1 19 38 57 76 96 115 153 191 230 268 305 344 382 420 458 497 535 573 1 1/8 17 34 51 68 84 102 136 170 204 238 272 306 340 373 407 441 475 509 1 1/4 15 31 46 61 76 92 122 153 183 214 244 275 305 336 367 397 428 458 1 3/8 14 28 42 56 69 83 111 139 167 194 222 250 278 306 333 361 389 417 1 1/2 13 25 38 51 63 76 102 127 153 178 204 229 255 280 305 331 356 382 M 2.0 242 484 725 967 1209 1451 1934 2418 2901 3385 3868 4352 4835 5319 5803 6286 6770 7253 M 3.0 162 324 486 647 809 971 1295 1619 1942 2266 2590 2914 3237 3561 3885 4208 4532 4856 M 3.5 138 277 415 554 692 830 1107 1384 1661 1938 2214 2491 2768 3045 3322 3599 3875 4152 M 4.0 122 243 365 487 608 730 973 1217 1460 1703 1946 2190 2433 2676 2920 3163 3406 3650 M 5.0 97 194 291 388 485 582 776 970 1163 1357 1551 1745 1939 2133 2327 2521 2715 2909 M 6.0 81 162 243 324 405 486 647 809 971 1133 1295 1457 1619 1781 1942 2104 2266 2428 M 7.0 69 138 208 277 346 415 554 692 830 969 1107 1246 1384 1522 1661 1799 1938 2076 Metric Taps 61 121 182 243 303 364 485 606 728 849 970 1091 1213 1334 1455 1577 1698 1819 48 97 145 194 242 291 388 485 582 679 776 873 970 1067 1163 1260 1357 1454 M 12.0 40 81 121 162 202 243 324 405 486 567 647 728 809 890 971 1052 1133 1214 M 14.0 35 69 104 139 173 208 277 347 416 485 555 624 693 763 832 901 971 1040 M 16.0 30 61 91 121 152 182 243 303 364 424 485 546 606 667 728 788 849 910 M 18.0 27 54 81 108 135 162 216 269 323 377 431 485 539 593 547 700 754 808 M 20.0 24 49 73 97 121 146 194 243 291 340 388 437 485 534 582 631 680 728 M 22.0 22 44 66 88 110 132 176 221 265 309 353 397 441 485 529 573 618 662 M 24.0 20 40 61 81 101 121 162 202 243 283 323 364 404 445 485 526 566 606 M 27.0 18 36 54 72 90 108 144 180 216 252 287 323 359 395 431 467 503 539 M 30.0 16 32 49 65 81 97 129 162 194 226 259 291 323 356 388 420 453 485 139 Technical M 8.0 M 10.0 DIN characteristic features for taps -ASTERæSTANDARDSæFORæDIMENSIONSæTOæ$).æ 4HEæ STANDARDæ $).æ æ STIPULATESæ THEæ MAJORæ DIMENSIONSæ FORæ TAPSæ ANDæ FLUTELESSæ TAPSæ REQUIREDæ FORæ THEæ THREADæ PRODUCTIONæ WITHæ NOMI NALæ DIAMETERæ Dæ æ æ æ æ MMæ 0ARTæ æ ISæ THEæ MASTERæ STANDARDæ FORæDIMENSIONSæFORæAæLONGæTOOLæDESIGNæPARTææTHEæMASTERæSTANDARDæ FORæDIMENSIONSæFORæTHEæSHORTæTOOLæDESIGNæ!CCORDINGæTOæTHEæNOMINALæ DIAMETERæRANGEæANDæDEPENDENTæONæTHEæPITCHæTHEæNUMBERæOFæTEETHæ ANDæTHEæRATIOæTOTALæLENGTHæTHESEæMASTERæSTANDARDSæINCLUDEæTHEæMAXæ THREADæLENGTHæTHEæSHANKæDESIGNSæhREINFORCEDæSHANKhæANDæhREDUCEDæ SHANKhææ!æDETAILEDæILLUSTRATIONæOFæSHANKæDESIGNSæANDæCHARACTERISTICæ FEATURESæCANæBEæFOUNDæBELOW Taps Fluteless taps $).æ $).æ -ACHINEæTAPS LONG (ANDæTAPSæAND MACHINEæTAPSæSHORT )3/æMETRIC THREAD )3/æMETRIC FINEæTHREAD $).æ $).æ $).æ $).æ 5.#"37 THREAD 5.& THREAD ^$).æ ^$).æ ^$).æ ^$).æ )3/æMETRIC THREAD $).æ $).æ )3/æMETRIC FINEæTHREAD $).æ )3/æMETRIC THREAD $).æ ' THREAD 5.#"37 THREAD 5.& THREAD ' THREAD 0G THREAD $).æ ^$).æ ^$).æ $).æ $).æ æ $).æ )3/æMETRIC FINEæTHREAD 5.# THREAD 5.& THREAD ' THREAD PREVIOUSLY PREVIOUSLY PREVIOUSLY PREVIOUSLY PREVIOUSLY $).æ $).æ ^$).æ ^$).æ $).æ $).æ ^$).æ ^$).æ REINFORCEDæSHANK WITHOUTæNECK REINFORCEDæSHANK WITHæNECK REDUCED SHANK $).æ SYMBOLæUSED INæTABLE 3HANKæDESIGNSæFORæTHREADæCUTTINGæTOOLS 4HREADæTYPE DIN ææææææææ4APSææææææææææææ&LUTELESSæTAPS M )3/æMETRIC threads MF )3/æMETRIC fine threads 5.#"37 threads Nominal diameter ranges mm æxæ æxæ æxæ n n n n n 3TANDARDæFORæMACHINEæTAPSæWITHæREINFORCED SHANKæFORæSTANDARDæ)3/æMETRICæTHREADSæANDæ)3/ METRICælNEæTHREADSæ,ONGæDESIGN 3HANKæDESIGNæINæACCORDANCEæWITHæDIAMETER RANGESæSHOWNæABOVEæMM $).æ Dæææxæ INæTHEæMASTERæSTANDARDæ $).æ Dææææxæ l1 INæTHEæMASTERæSTANDARDæ $).æ d1 $).æ $).æ INæTHEæMASTERæSTANDARDæ $).æ 140 D l1 l1 D n #HARACTERISTICæFEATURESæOFæTHEæINDIVIDUALæSTANDARDS d1 Technical UNF threads $).æ $).æ $).æ $).æ $).æ $).æ $).æ $).æ ^$).æ ^$).æ ^$).æ ^$).æ ^$).æ æ^$).æ contained in the master standards 3TANDARDæFORæMACHINEæTAPSæWITHæREDUCEDæSHANK FORæSTANDARDæ)3/æMETRICæTHREADSæ,ONGæDESIGN $IAMETERæRANGEæDæææxææMM éææ-æSHANKæWITHOUTæSQUARE 3TANDARDæFORæMACHINEæTAPSæWITHæREDUCEDæSHANK FORæ)3/æMETRICælNEæTHREADSæ,ONGæDESIGN $IAMETERæRANGEæDæææxææMM General information thread milling #ARBIDEæSTRAIGHTæSHANKSæFORæTHREADæMILLINGæCUTTERSæTOæ$).æ &ORMæ(!æPLAIN $IMENSIONSæINæMM H æ æ æ æ æ æ CHAMFER WITHOUTææ CENTREæHOLE &ORMæ("æWITHæDRIVEæFLAT D $IMENSIONSæINæMM H B E D WITHæONEæDRIVEæFLATæFORæ DæææANDææMM H L L D CHAMFER WITHOUTææ CENTREæHOLE WITHæTWOæDRIVEæFLATSæFORæ DæææANDææMM WITHOUTææ CENTREæHOLE H H L L n n n n n n n n CHAMFER Technical &ORMæ(%æWITHæWHISTLEæNOTCHæFLATæWITHOUTæCOOLANTæDUCTS $IMENSIONSæINæMM æ$ESIGNæ3TRAIGHTæSHANKSæTOæ$).ææAREæAVAILABLEæWITHæORæWITHOUTæOILæ FEEDæHOLESæ!PPLICATIONSæFORæVARIOUSæTOOLSæDIMENSIONSæANDæPOSITIONæOFæ OILæFEEDæHOLESæAREæFULLYæDESCRIBEDæWITHINæTHEæSTANDARDæRANGEæSECTIONS FORæDæææUPæTOææMM WITHOUTæCENTREæHOLE CHAMFER FORæDæææANDææMM Dæ æ H Bæ æ ≈ B Hæ H æ H Læ Læ æ æ Læ NOMæ SIZE Ræ æ MIN n n n n n n n n n n n n n n n n 141 General dimensional information - taps UNC Size 2-56 3-48 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 ANSI Standard Taps DIN Standard Taps UNC - inch dimensions UNC - inch dimensions Shank dia. Square Size l l3 l1 0.141 0.141 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.110 0.110 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 1.882 1.882 1.882 1.941 1.941 2.130 2.382 2.382 2.500 2.720 2.941 3.157 3.381 3.591 3.811 4.252 4.689 5.130 0.631 0.631 0.709 0.709 0.709 0.827 0.945 1.024 1.181 1.377 1.456 1.496 1.575 1.575 1.732 1.732 2.283 2.480 0.441 0.441 0.441 0.276 0.276 0.315 0.433 0.433 0.512 0.630 0.709 0.707 0.787 0.827 0.984 0.984 1.110 1.260 1.021 0.766 5.748 2.677 1.457 1.233 0.925 6.377 2.953 1.771 UNC Size 2-56 3-48 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 Shank dia. 0.110 0.110 0.110 0.137 0.137 0.177 0.236 0.236 0.236 0.315 0.394 Technical UNF - inch dimensions 142 Square Size 0.083 0.083 0.083 0.106 0.106 0.134 0.192 0.192 0.192 0.244 0.315 Only Only Only Only Only Only Only Only Only Only Only l l3 1.772 0.531 1.772 0.531 1.772 0.531 2.205 0.709 2.205 0.709 2.480 0.827 2.756 0.984 3.149 1.181 3.149 1.181 3.543 1.377 3.937 1.535 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 l1 0.197 0.236 0.315 0.394 0.394 0.472 0.551 0.433 0.630 0.709 0.787 UNF - inch dimensions UNF Size Shank dia. Square Size l l3 l1 2-64 3-56 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8 -12 1 1/4-12 1 3/8-12 1 1/2-12 0.141 0.141 0.141 0.141 0.141 0.168 0.194 0.220 0.255 0.318 0.381 0.323 0.367 0.429 0.480 0.590 0.697 0.800 0.110 0.110 0.110 0.110 0.110 0.131 0.152 0.165 0.191 0.238 0.286 0.242 0.275 0.322 0.360 0.442 0.523 0.600 1.882 1.882 1.882 1.941 1.941 2.130 2.382 2.382 2.500 2.720 2.941 3.157 3.381 3.591 3.811 4.252 4.689 5.130 0.631 0.631 0.709 0.709 0.709 0.827 0.945 1.024 1.181 1.377 1.456 1.496 1.575 1.575 1.732 1.732 1.732 1.968 0.236 0.256 0.276 0.335 0.354 0.354 0.433 0.433 0.511 0.511 0.551 0.590 0.630 0.748 0.866 1.021 0.766 5.748 2.087 0.866 1.233 0.925 6.377 2.205 0.945 UNF Size 2-64 3-56 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8 -12 1 1/4-12 1 3/8-12 1 1/2-12 Shank dia. 0.110 0.110 0.110 0.137 0.137 0.177 0.236 0.236 0.236 0.315 0.394 Square Size 0.083 0.083 0.083 0.106 0.106 0.134 0.192 0.192 0.192 0.244 0.315 Only Only Only Only Only Only Only Only Only Only Only l l3 1.772 0.531 1.772 0.531 1.772 0.531 2.205 0.709 2.205 0.709 2.480 0.827 2.756 0.984 3.149 1.181 3.149 1.181 3.543 1.377 3.937 1.535 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 l1 0.315 0.236 0.236 0.256 0.276 0.335 0.354 0.354 0.433 0.433 General dimensional information - taps ANSI Standard Taps DIN Standard Taps Metric - inch dimensions Metric - inch dimensions Metric Size Shank dia. Square Size l l3 l1 M2x0.4 M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22 x 2.50 M24 x 3.00 M30 x 3.50 M36 x 4.0 0.141 0.141 0.168 0.194 0.255 0.318 0.381 0.367 0.429 0.480 0.542 0.652 0.110 0.110 0.131 0.152 0.191 0.238 0.286 0.275 0.322 0.360 0.406 0.489 1.752 1.941 2.130 2.382 2.500 2.720 2.941 3.381 3.591 3.811 4.031 4.469 n.a. 0.709 0.827 0.945 1.181 1.377 1.456 1.732 1.850 1.929 2.087 2.283 0.276 0.315 0.433 0.512 0.629 0.709 0.787 0.827 0.984 0.984 1.110 l3 l1 Metric Size Shank dia. M2x0.4 M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22 x 2.50 M24 x 3.00 M30 x 3.50 M36 x 4.0 0.110 0.137 0.177 0.236 0.236 0.315 0.394 MF Size Shank dia. Square Size l l3 l1 0.086 0.110 0.138 0.177 0.236 0.276 0.354 0.433 0.472 0.551 0.623 0.709 0.709 0.866 1.102 n.a. 0.083 0.106 0.134 0.193 0.217 0.276 0.354 0.354 0.433 0.472 0.571 0.571 0.709 0.866 2.205 2.480 2.756 3.149 3.543 3.937 3.937 3.937 3.937 4.331 4.921 4.921 5.512 5.905 6.693 n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a 0.276 0.315 0.394 0.519 0.551 0.709 0.787 0.787 0.866 0.984 0.984 0.984 0.984 1.102 1.181 Metric Fine - inch dimensions MF Size 0.141 0.168 0.194 0.255 0.318 0.381 0.367 0.429 0.480 0.542 0.652 Square Size 0.110 0.131 0.152 0.191 0.238 0.286 0.275 0.322 0.360 0.406 0.489 l 1.941 2.130 2.382 2.500 2.720 2.941 3.381 3.591 3.811 4.031 4.469 l l3 0.083 1.772 0.531 0.106 2.205 0.709 0.134 2.480 0.827 0.192 2.756 0.984 0.192 3.149 1.181 0.244 3.543 1.377 0.315 3.937 1.535 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 l1 0.315 0.394 0.472 0.551 0.630 0.709 0.787 Metric Fine - inch dimensions 0.709 0.827 0.945 1.181 1.377 1.456 1.732 1.850 1.929 2.087 2.283 0.236 0.197 0.197 0.315 0.433 0.433 0.433 0.591 0.591 0.629 0.629 M2x0.25 M3x0.35 M4x0.5 M5x0.5 M6x0.75 M8x1 M10x1 M12x1 M14x1.5 M16x1,5 M18x1.5 M20x1,5 M22 x 1 M24 x 2 M30 x 1.5 M36 x 2 Technical M2x0.25 M3x0.35 M4x0.5 M5x0.5 M6x0.75 M8x1 M10x1 M12x1 M14x1.5 M16x1,5 M18x1.5 M20x1,5 M22 x 1 M24 x 2 M30 x 1.5 M36 x 2 Shank dia. Square Size 143 General dimensional information - taps UNC Size 2-56 3-48 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 ANSI Standard Taps DIN Standard Taps UNC - metric dimensions UNC - metric dimensions Shank dia. Square Size l l3 l1 3.581 3.581 3.581 3.581 3.581 4.267 4.928 5.588 6.477 8.077 9.677 8.204 9.322 10.897 12.192 14.986 17.704 20.320 2.794 0.110 0.110 0.110 0.110 3.327 3.861 4.191 4.851 6.045 7.264 6.147 6.985 8.179 9.144 11.227 13.284 15.240 47.8 47.8 47.8 49.3 49.3 54.1 60.5 60.5 63.5 69.1 74.7 80.2 85.9 91.2 96.8 108.0 119.1 130.3 16.0 16.0 18.0 18.0 18.0 21.0 24.0 26.0 30.0 35.0 37.0 38.0 40.0 40.0 44.0 44.0 58.0 63.0 11.2 11.2 11.2 7.0 7.0 8.0 11.0 11.0 13.0 16.0 18.0 18.0 20.0 21.0 25.0 25.0 28.2 32.0 25.933 19.456 146.0 68.0 37.0 31.318 23.495 162.0 75.0 45.0 UNC Size 2-56 3-48 4-40 5-40 6-32 8-32 10-24 12-24 1/4-20 5/16-18 3/8-16 7/16-14 1/2-13 9/16-12 5/8-11 3/4-10 7/8-9 1-8 1 1/8-7 1 1/4-7 1 3/8-6 1 1/2-6 Shank dia. Square Size 2.8 2.8 2.8 3.5 3.5 4.5 6.0 6.0 6.0 8.0 10.0 2.1 2.1 2.1 2.7 2.7 3.4 4.9 4.9 4.9 6.2 8.0 Only Only Only Only Only Only Only Only Only Only Only Technical UNF - metric dimensions 144 l l3 45.0 13.5 45.0 13.5 45.0 13.5 56.0 18.0 56.0 18.0 63.0 21.0 70.0 25.0 80.0 30.0 80.0 30.0 90.0 35.0 100.0 39.0 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 l1 8.0 9.0 6.5 6.5 8.0 8.0 11.0 11.0 13.0 14.0 16.0 UNF - metric dimensions UNF Size Shank dia. Square Size l l3 2-64 3-56 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8 -12 1 1/4-12 1 3/8-12 1 1/2-12 3.581 3.581 3.581 3.581 3.581 4.267 4.928 5.588 6.477 8.077 9.677 8.204 9.322 10.897 12.192 14.986 17.704 20.320 2.79 2.79 2.79 2.79 2.79 3.33 3.86 4.19 4.85 6.05 7.26 6.15 6.99 8.18 9.14 11.23 13.28 15.24 47.8 47.8 47.8 49.3 49.3 54.1 60.5 60.5 63.5 69.1 74.7 80.2 85.9 91.2 96.8 108.0 119.1 130.3 16.0 16.0 18.0 18.0 18.0 21.0 24.0 26.0 30.0 35.0 37.0 38.0 40.0 40.0 44.0 44.0 44.0 50.0 l1 6.0 6.5 7.0 8.5 9.0 9.0 11.0 11.0 13.0 13.0 14.0 15.0 16.0 19.0 22.0 25.933 19.46 146.0 53.0 22.0 31.318 23.50 162.0 56.0 24.0 UNF Size 2-64 3-56 4-48 5-44 6-40 8-36 10-32 12-28 1/4-28 5/16-24 3/8-24 7/16-20 1/2-20 9/16-18 5/8-18 3/4-16 7/8-14 1-12 1 1/8 -12 1 1/4-12 1 3/8-12 1 1/2-12 Shank dia. Square Size l l3 l1 2.8 2.8 2.8 3.5 3.5 4.5 6.0 6.0 6.0 8.0 10.0 2.1 2.1 2.1 2.7 2.7 3.4 4.9 4.9 4.9 6.2 8.0 45.0 45.0 45.0 56.0 56.0 63.0 70.0 80.0 80.0 90.0 100.0 13.5 13.5 13.5 18.0 18.0 21.0 25.0 30.0 30.0 35.0 39.0 8.0 Only Only Only Only Only Only Only Only Only Only Only available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 available in DIN 376 8.0 6.0 6.0 6.5 7.0 8.5 9.0 9.0 11.0 11.0 General dimensional information - taps ANSI Standard Taps DIN Standard Taps Metric - Metric dimensions Metric - Metric dimensions Metric Size Shank dia. Square Size l l3 l1 M2x0.4 M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22 x 2.50 M24 x 3.00 M30 x 3.50 M36 x 4.0 3.581 3.581 4.267 4.928 6.477 8.077 9.677 9.322 10.897 12.192 13.767 16.561 2.79 2.79 3.33 3.86 4.85 6.05 7.26 6.99 8.18 9.14 10.31 12.42 44.5 49.3 54.1 60.5 63.5 69.1 74.7 85.9 91.2 96.8 102.4 113.5 n.a. 18.0 21.0 24.0 30.0 35.0 37.0 44.0 47.0 49.0 53.0 58.0 7.0 8.0 11.0 13.0 16.0 18.0 20.0 21.0 25.0 25.0 28.2 l3 l1 Metric Size Shank dia. Square Size M2x0.4 M3x0.5 M4x0.7 M5x0.8 M6x1 M8x1.25 M10x1.5 M12x1.75 M14x2 M16x2 M18x2.5 M20x2.5 M22 x 2.50 M24 x 3.00 M30 x 3.50 M36 x 4.0 2.8 3.5 4.5 6.0 6.0 8.0 10.0 2.1 2.7 3.4 4.9 4.9 6.2 8.0 MF Size Shank dia. Square Size l l3 l1 2.2 2.8 3.5 4.5 6.0 7.0 9.0 11.0 12.0 14.0 16.0 18.0 18.0 22.0 28.0 n.a. 2.1 2.7 3.4 4.9 5.5 7.0 9.0 9.0 11.0 12.0 14.5 14.5 18.0 22.0 56.0 63.0 70.0 80.0 90.0 100.0 100.0 100.0 100.0 110.0 125.0 125.0 140.0 150.0 170.0 n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a n.a 7.0 8.0 10.0 13.2 14.0 18.0 20.0 20.0 22.0 25.0 25.0 25.0 25.0 28.0 30.0 Metric Fine - Metric dimensions MF Size 3.581 4.267 4.928 6.477 8.077 9.677 9.322 10.897 12.192 13.767 16.561 Square Size 2.794 3.327 3.861 4.851 6.045 7.264 0.275 8.179 9.144 10.312 12.421 l 49.301 54.102 60.503 63.500 69.088 74.701 85.877 91.211 96.799 102.387 113.513 l3 l1 8.0 10.0 12.0 14.0 16.0 18.0 20.0 Metric Fine - Metric dimensions 18.0 21.0 24.0 30.0 35.0 37.0 44.0 47.0 49.0 53.0 58.0 5.994 5.004 5.004 8.001 10.998 10.998 10.998 15.011 15.011 15.977 15.977 M2x0.25 M3x0.35 M4x0.5 M5x0.5 M6x0.75 M8x1 M10x1 M12x1 M14x1.5 M16x1,5 M18x1.5 M20x1,5 M22 x 1 M24 x 2 M30 x 1.5 M36 x 2 Technical M2x0.25 M3x0.35 M4x0.5 M5x0.5 M6x0.75 M8x1 M10x1 M12x1 M14x1.5 M16x1,5 M18x1.5 M20x1,5 M22 x 1 M24 x 2 M30 x 1.5 M36 x 2 Shank dia. l 45.0 13.5 56.0 18.0 63.0 21.0 70.0 25.0 80.0 30.0 90.0 35.0 100.0 39.0 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 Only available in DIN 376 145 Guhring Substrate and Coating Descriptions High speed steels /NLYæHIGHæQUALITYæTOOLæMATERIALSæAREæUSEDæTOæPRODUCEæ(33æTOOLSæ3YSTEMATICæ SELECTIONæOFæALLOYINGæELEMENTSæENSUREæTHEæTOOLæPOSSESSESæTHEæOPTIMALæCHA RACTERISTICSæFORæTHEæINDIVIDUALæTASKSæ4HESEæELEMENTSæINCLUDE æææ4UNGSTENæ-OLYBDENUMæINCREASEæHEATæANDæWEARRESISTANCE æææ6ANADIUMæINCREASESæWEARRESISTANCEæOFæFINISHINGæTOOLS ææ#OBALTæENABLESæINCREASEDæHARDENINGæTEMPERATURESæANDæHEATRESISTANCE Carbide #ARBIDEæSIMILARæTOæSTEELæISæAæLESSæTHANæPRECISEæANDæINDEEDæAæVERYæGENERALæ TERMæFORæANæENTIREæMATERIALæGROUPæ#ARBIDEæCANæBEæPRODUCEDæINæANæINFINITEæ NUMBERæOFæVARIATIONSæWITHæDIFFERENTæCHARACTERISTICSæTHROUGHæTHEæCOMBINATI ONæOFæATæLEASTæTWOæBASICæCONSTITUENTS Carbide production #ARBIDEæCONSISTSæOFæAæHARDNESSæCARRIERænæTUNGSTENæCARBIDEæPLUSæMAYBEæONEæ ORæMOREæCARBIDESænæANDæANæEXTREMELYæTOUGHæCOMPONENTæ#OBALTæ#Oæ#O BALTæBASICALLYæSERVESæASæAæCEMENTINGæORæBINDINGæAGENTæINæWHICHæTHEæCARBIDEæ PARTICLESæAREæDISTRIBUTED /URæCARBIDEæDIVISIONæHASæAæSTATEOFTHEARTæLABORATORYæATæITSæDISPOSALæTOæEN SUREæ OURæ CARBIDEæ ALWAYSæ CORRESPONDSæ WITHæ CUSTOMERæ REQUIREMENTSæ &ROMæ THEæ RAWæ MATERIALæ TOæ THEæ FINISHEDæ PRODUCTæ SAMPLESæ AREæ CONTINUOUSLYæ EXA MINEDæINæORDERæTOæGUARANTEEæANDæDOCUMENTæTHEæHIGHESTæQUALITYæANDæPROCESSæ RELIABILITYæINæACCORDANCEæWITHæTHEæCERTIFICATION High-performance thin-film PVD coatings from Guhring TiN Titanum Nitride TiCN Titanum Carbonitride TiAlN Tiatnium Aluminum Nitride FIREX Technical ® Special TiN-TiAlN nano-FIREX ® Special TiN-TiAlN Super-A ™ Aluminum Titanium Nitride nano-A ™ Aluminum Titanium Nitride MolyGlide ® MoS2-Based 146 Type Identifying Color Coating Process Coating Temperature NanoFriction Layer Thickness Thermal hardness Coefficient Structure (μm) Stability (HV 0.05) (fetting) Hard • Wear-resistant Gold PVD Physical Vapor Depositionn 930º F 500º C Monolayer 1.5 - 4.0 2400 0.50 1100º F 595º C Hard • Wear-resistant Gray Violet PVD Physical Vapor Deposition 930º F 500º C Gradient 1.5 - 5.0 3000 0.25 840º F 450º C Hard • Wear-resistant Black Violet PVD Physical Vapor Deposition 930º F 500º C Monolayer 1.5 - 4.0 3300 0.50 1470º F 800º C Hard • Wear-resistant Red Violet PVD Physical Vapor Deposition 930º F 500º C Multilayer 1.5 - 5.0 3000-3300 0.50 1470º F 800º C Hard • Wear-resistant Red Violet PVD Physical Vapor Deposition 930º F 500º C Multilayer 1.5 - 4.0 3000-3300 0.50 1470º F 800º C Hard • Wear-resistant Dark Gray PVD Physical Vapor Deposition 930º F 500º C Monolayer 1.5 - 4.0 3800 0.60 1650º F 900º C Hard • Wear-resistant Dark Gray PVD Physical Vapor Deposition 930º F 500º C Monolayer 1.5 - 4.0 3800 0.60 1650º F 900º C Soft • Lubricating Silver PVD Physical Vapor Deposition 305º F 150º C Monolayer 1.0 n.a. 0.10 1470º F 800º C 5.#ææ5.&æ4APæ$RILLæ3IZES 81-59% Theoretical Percentage of Thread dec 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-48 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 3-56 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-40 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 4-48 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-40 5-44 5-44 5-44 5-44 5-44 5-44 5-44 0.0772 0.0776 0.0780 0.0783 0.0787 0.0791 0.0795 0.0799 0.0803 0.0807 0.0811 0.0815 0.0819 0.0823 0.0827 0.0831 0.0803 0.0807 0.0811 0.0815 0.0819 0.0823 0.0827 0.0831 0.0835 0.0839 0.0843 0.0846 0.0850 0.0854 0.0858 0.0862 0.0866 0.0870 0.0874 0.0878 0.0882 0.0886 0.0890 0.0894 0.0898 0.0902 0.0906 0.0909 0.0913 0.0917 0.0921 0.0925 0.0929 0.0902 0.0906 0.0909 0.0913 0.0917 0.0921 0.0925 0.0929 0.0933 0.0937 0.0941 0.0945 0.0949 0.0953 0.0957 0.0961 0.0988 0.0992 0.0996 0.1000 0.1004 0.1008 0.1012 0.1016 0.1020 0.1024 0.1028 0.1031 0.1035 0.1039 0.1043 0.1047 0.1051 0.1055 0.1059 0.1012 0.1016 0.1020 0.1024 0.1028 0.1031 0.1035 Fract 5/64 47 46 45 46 45 44 43 42 3/32 41 39 38 37 38 mm 1.960 1.970 1.980 1.990 2.000 2.010 2.020 2.030 2.040 2.050 2.060 2.070 2.080 2.090 2.100 2.110 2.040 2.050 2.060 2.070 2.080 2.090 2.100 2.110 2.120 2.130 2.140 2.150 2.160 2.170 2.180 2.190 2.200 2.210 2.220 2.230 2.240 2.250 2.260 2.270 2.280 2.290 2.300 2.310 2.320 2.330 2.340 2.350 2.360 2.290 2.300 2.310 2.320 2.330 2.340 2.350 2.360 2.370 2.380 2.390 2.400 2.410 2.420 2.430 2.440 2.510 2.520 2.530 2.540 2.550 2.560 2.570 2.580 2.590 2.600 2.610 2.620 2.630 2.640 2.650 2.660 2.670 2.680 2.690 2.570 2.580 2.590 2.600 2.610 2.620 2.630 81-59% Theoretical Percentage of Thread Theor % 81 79 78 76 75 74 72 71 69 68 66 65 63 62 60 59 81 79 77 75 74 72 70 69 67 65 63 62 60 59 81 79 78 77 76 75 73 72 71 70 68 67 66 65 64 63 61 60 59 81 79 78 76 75 74 72 71 69 68 66 65 63 62 60 59 81 79 78 77 76 75 73 72 71 70 68 67 66 65 64 63 61 60 59 81 79 78 77 75 74 73 Tap Size dec 5-44 5-44 5-44 5-44 5-44 5-44 5-44 5-44 5-44 5-44 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-32 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 6-40 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-32 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 8-36 0.1039 0.1043 0.1047 0.1051 0.1055 0.1059 0.1063 0.1067 0.1071 0.1075 0.1051 0.1055 0.1059 0.1063 0.1067 0.1071 0.1075 0.1079 0.1083 0.1087 0.1091 0.1094 0.1098 0.1102 0.1106 0.1110 0.1114 0.1118 0.1122 0.1126 0.1130 0.1134 0.1138 0.1142 0.1118 0.1122 0.1126 0.1130 0.1134 0.1138 0.1142 0.1146 0.1150 0.1154 0.1157 0.1161 0.1165 0.1169 0.1173 0.1177 0.1181 0.1185 0.1189 0.1311 0.1315 0.1319 0.1323 0.1327 0.1331 0.1335 0.1339 0.1343 0.1346 0.1350 0.1354 0.1358 0.1362 0.1366 0.1370 0.1374 0.1378 0.1382 0.1386 0.1390 0.1394 0.1398 0.1402 0.1346 0.1350 0.1354 0.1358 0.1362 0.1366 0.1370 0.1374 0.1378 0.1382 0.1386 0.1390 0.1394 0.1398 Fract Wire/ Let 37 36 36 7/64 35 34 33 33 32 29 29 mm 2.640 2.650 2.660 2.670 2.680 2.690 2.700 2.710 2.720 2.730 2.670 2.680 2.690 2.700 2.710 2.720 2.730 2.740 2.750 2.760 2.770 2.780 2.790 2.800 2.810 2.820 2.830 2.840 2.850 2.860 2.870 2.880 2.890 2.900 2.840 2.850 2.860 2.870 2.880 2.890 2.900 2.910 2.920 2.930 2.940 2.950 2.960 2.970 2.980 2.990 3.000 3.010 3.020 3.330 3.340 3.350 3.360 3.370 3.380 3.390 3.400 3.410 3.420 3.430 3.440 3.450 3.460 3.470 3.480 3.490 3.500 3.510 3.520 3.530 3.540 3.550 3.560 3.420 3.430 3.440 3.450 3.460 3.470 3.480 3.490 3.500 3.510 3.520 3.530 3.540 3.550 81-59% Theoretical Percentage of Thread Theor % 71 70 69 67 66 65 63 62 61 59 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 67 66 65 64 63 62 61 60 59 81 79 78 77 76 75 73 72 71 70 69 67 66 65 64 63 61 60 59 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 67 66 65 64 63 62 61 60 59 81 80 79 78 77 76 75 74 73 72 70 69 68 67 Tap Size dec 8-36 8-36 8-36 8-36 8-36 8-36 8-36 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-24 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 10-32 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 12-24 0.1402 0.1406 0.1409 0.1413 0.1417 0.1421 0.1425 0.1461 0.1465 0.1469 0.1472 0.1476 0.1480 0.1484 0.1488 0.1492 0.1496 0.1500 0.1504 0.1508 0.1512 0.1516 0.1520 0.1524 0.1528 0.1531 0.1535 0.1539 0.1543 0.1547 0.1551 0.1555 0.1559 0.1563 0.1567 0.1571 0.1575 0.1579 0.1583 0.1571 0.1575 0.1579 0.1583 0.1587 0.1591 0.1594 0.1598 0.1602 0.1606 0.1610 0.1614 0.1618 0.1622 0.1626 0.1630 0.1634 0.1638 0.1642 0.1646 0.1650 0.1654 0.1657 0.1661 0.1720 0.1724 0.1728 0.1732 0.1736 0.1740 0.1744 0.1748 0.1752 0.1756 0.1760 0.1764 0.1768 0.1772 0.1776 0.1780 0.1783 0.1787 0.1791 0.1795 0.1799 0.1803 0.1807 0.1811 0.1815 0.1819 0.1823 0.1827 Fract Wire/ Let 9/64 28 26 25 24 23 5/32 22 22 21 20 19 11/64 17 16 15 14 mm 3.560 3.570 3.580 3.590 3.600 3.610 3.620 3.710 3.720 3.730 3.740 3.750 3.760 3.770 3.780 3.790 3.800 3.810 3.820 3.830 3.840 3.850 3.860 3.870 3.880 3.890 3.900 3.910 3.920 3.930 3.940 3.950 3.960 3.970 3.980 3.990 4.000 4.010 4.020 3.990 4.000 4.010 4.020 4.030 4.040 4.050 4.060 4.070 4.080 4.090 4.100 4.110 4.120 4.130 4.140 4.150 4.160 4.170 4.180 4.190 4.200 4.210 4.220 4.370 4.380 4.390 4.400 4.410 4.420 4.430 4.440 4.450 4.460 4.470 4.480 4.490 4.500 4.510 4.520 4.530 4.540 4.550 4.560 4.570 4.580 4.590 4.600 4.610 4.620 4.630 4.640 Theor % 66 65 64 63 62 61 60 81 80 80 79 78 78 77 76 75 75 74 73 72 72 71 70 69 69 68 67 67 66 65 64 64 63 62 62 61 60 59 59 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 67 66 65 64 63 62 61 60 59 81 81 80 79 78 78 77 76 75 75 74 73 72 72 71 70 70 69 68 67 67 66 65 64 64 63 62 62 147 Technical Tap Size Wire/ Let 5.#ææ5.&æ4APæ$RILLæ3IZES Technical 81-59% Theoretical Percentage of Thread Tap Size dec 12-24 12-24 12-24 12-24 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 12-28 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-20 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 1/4-28 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-18 5/16-24 5/16-24 5/16-24 5/16-24 5/16-24 5/16-24 5/16-24 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-16 3/8-24 3/8-24 3/8-24 3/8-24 3/8-24 3/8-24 7/16-14 7/16-14 0.1831 0.1835 0.1839 0.1843 0.1783 0.1787 0.1791 0.1795 0.1799 0.1803 0.1807 0.1811 0.1815 0.1819 0.1823 0.1827 0.1831 0.1835 0.1839 0.1843 0.1846 0.1850 0.1854 0.1858 0.1862 0.1866 0.1870 0.1874 0.1878 0.1882 0.1886 0.1988 0.1992 0.2008 0.2012 0.2028 0.2031 0.2039 0.2047 0.2055 0.2067 0.2087 0.2091 0.2106 0.2126 0.2130 0.2146 0.2165 0.2185 0.2189 0.2205 0.2209 0.2224 0.2539 0.2559 0.2571 0.2579 0.2598 0.2610 0.2618 0.2638 0.2657 0.2677 0.2697 0.2697 0.2717 0.2736 0.2756 0.2768 0.2776 0.2795 0.3091 0.3110 0.3126 0.3130 0.3150 0.3161 0.3169 0.3189 0.3209 0.3228 0.3248 0.3268 0.3327 0.3346 0.3366 0.3386 0.3406 0.3425 0.3622 0.3642 148 Fract Wire/ Let 15 14 13 3/16 8 7 13/64 6 5 4 3 7/32 2 F G 17/64 H I J 5/16 O P mm 4.650 4.660 4.670 4.680 4.530 4.540 4.550 4.560 4.570 4.580 4.590 4.600 4.610 4.620 4.630 4.640 4.650 4.660 4.670 4.680 4.690 4.700 4.710 4.720 4.730 4.740 4.750 4.760 4.770 4.780 4.790 5.050 5.060 5.100 5.110 5.150 5.160 5.180 5.200 5.220 5.250 5.300 5.310 5.350 5.400 5.410 5.450 5.500 5.550 5.560 5.600 5.610 5.650 6.450 6.500 6.530 6.550 6.600 6.630 6.650 6.700 6.750 6.800 6.850 6.850 6.900 6.950 7.000 7.030 7.050 7.100 7.850 7.900 7.940 7.950 8.000 8.030 8.050 8.100 8.150 8.200 8.250 8.300 8.450 8.500 8.550 8.600 8.650 8.700 9.200 9.250 81-59% Theoretical Percentage of Thread Theor % 61 60 59 59 81 80 80 79 78 77 76 75 74 74 73 72 71 70 69 68 68 67 66 65 64 63 63 62 61 60 59 79 78 76 75 73 72 71 70 69 67 64 63 61 81 80 76 72 68 67 64 63 59 81 78 77 76 73 71 70 67 65 62 59 79 75 72 68 66 64 61 81 79 77 76 74 73 72 69 67 64 62 59 78 75 71 67 64 60 81 79 Tap Size dec 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-14 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20 7/16-20 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-13 1/2-20 1/2-20 1/2-20 1/2-20 1/2-20 1/2-20 1/2-20 1/2-20 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-12 9/16-18 9/16-18 9/16-18 9/16-18 9/16-18 9/16-18 9/16-18 9/16-18 9/16-18 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-11 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 5/8-18 0.3661 0.3677 0.3681 0.3701 0.3720 0.3740 0.3748 0.3760 0.3772 0.3780 0.3799 0.3819 0.3858 0.3878 0.3898 0.3906 0.3917 0.3937 0.3957 0.3969 0.3976 0.4193 0.4213 0.4220 0.4232 0.4252 0.4272 0.4291 0.4311 0.4331 0.4350 0.4370 0.4374 0.4390 0.4409 0.4488 0.4508 0.4528 0.4531 0.4547 0.4567 0.4587 0.4606 0.4744 0.4764 0.4783 0.4803 0.4823 0.4843 0.4862 0.4882 0.4902 0.4921 0.4941 0.4961 0.4980 0.5039 0.5059 0.5079 0.5098 0.5118 0.5138 0.5157 0.5177 0.5197 0.5295 0.5311 0.5315 0.5335 0.5354 0.5374 0.5394 0.5413 0.5433 0.5453 0.5469 0.5472 0.5492 0.5512 0.5531 0.5551 0.5669 0.5689 0.5709 0.5728 0.5748 0.5768 0.5780 0.5787 0.5807 0.5827 Fract Wire/ Let U 3/8 V W 25/64 X 27/64 7/16 29/64 31/64 33/64 17/32 35/64 37/64 mm 9.300 9.340 9.350 9.400 9.450 9.500 9.520 9.550 9.580 9.600 9.650 9.700 9.800 9.850 9.900 9.920 9.950 10.000 10.050 10.080 10.100 10.650 10.700 10.720 10.750 10.800 10.850 10.900 10.950 11.000 11.050 11.100 11.110 11.150 11.200 11.400 11.450 11.500 11.510 11.550 11.600 11.650 11.700 12.050 12.100 12.150 12.200 12.250 12.300 12.350 12.400 12.450 12.500 12.550 12.600 12.650 12.800 12.850 12.900 12.950 13.000 13.050 13.100 13.150 13.200 13.450 13.490 13.500 13.550 13.600 13.650 13.700 13.750 13.800 13.850 13.890 13.900 13.950 14.000 14.050 14.100 14.400 14.450 14.500 14.550 14.600 14.650 14.680 14.700 14.750 14.800 81-59% Theoretical Percentage of Thread Theor % 77 75 75 73 71 68 68 66 65 64 62 60 80 77 73 72 71 67 64 63 61 81 79 78 77 75 73 71 69 67 65 63 63 61 59 79 76 73 72 70 67 64 61 81 80 78 76 74 72 70 69 67 65 63 61 60 81 78 76 73 70 67 65 62 59 81 80 79 77 76 74 72 71 69 67 66 66 64 62 61 59 81 78 75 72 70 67 65 64 61 59 Tap Size dec 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-10 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 3/4-16 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-9 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 7/8-14 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-8 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 1-12 0.6457 0.6476 0.6496 0.6516 0.6535 0.6555 0.6563 0.6575 0.6594 0.6614 0.6634 0.6654 0.6673 0.6693 0.6713 0.6720 0.6732 0.6850 0.6870 0.6874 0.6890 0.6909 0.6929 0.6949 0.6969 0.6988 0.7008 0.7579 0.7598 0.7618 0.7638 0.7657 0.7677 0.7697 0.7717 0.7736 0.7756 0.7776 0.7795 0.7811 0.7815 0.7835 0.7854 0.7874 0.7894 0.8012 0.8031 0.8051 0.8071 0.8091 0.8110 0.8126 0.8130 0.8150 0.8169 0.8189 0.8681 0.8701 0.8720 0.8740 0.8748 0.8760 0.8780 0.8799 0.8819 0.8839 0.8858 0.8878 0.8898 0.8906 0.8917 0.8937 0.8957 0.8976 0.8996 0.9016 0.9035 0.9134 0.9154 0.9173 0.9193 0.9213 0.9220 0.9232 0.9252 0.9272 0.9291 0.9311 0.9331 0.9350 0.9370 Fract 21/32 43/64 11/16 49/64 25/32 13/16 7/8 57/64 59/64 Wire/ Let mm 16.400 16.450 16.500 16.550 16.600 16.650 16.670 16.700 16.750 16.800 16.850 16.900 16.950 17.000 17.050 17.070 17.100 17.400 17.450 17.460 17.500 17.550 17.600 17.650 17.700 17.750 17.800 19.250 19.300 19.350 19.400 19.450 19.500 19.550 19.600 19.650 19.700 19.750 19.800 19.840 19.850 19.900 19.950 20.000 20.050 20.350 20.400 20.450 20.500 20.550 20.600 20.640 20.650 20.700 20.750 20.800 22.050 22.100 22.150 22.200 22.220 22.250 22.300 22.350 22.400 22.450 22.500 22.550 22.600 22.620 22.650 22.700 22.750 22.800 22.850 22.900 22.950 23.200 23.250 23.300 23.350 23.400 23.420 23.450 23.500 23.550 23.600 23.650 23.700 23.750 23.800 Theor % 80 79 77 76 74 73 72 71 70 68 67 65 64 62 61 60 59 80 78 77 75 73 70 68 65 63 61 81 80 78 77 76 74 73 72 70 69 67 66 65 65 63 62 61 59 80 77 75 73 71 69 67 67 65 63 60 81 80 79 78 77 76 75 74 73 72 70 69 68 67 67 65 64 63 62 61 59 80 78 76 75 73 72 71 69 67 65 64 62 60 58 5.#ææ5.&æ4APæ$RILLæ3IZES 81-59% Theoretical Percentage of Thread Tap Size dec Fract 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-7 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/8-12 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 0.9689 0.9724 0.9764 0.9803 0.9843 0.9882 0.9921 0.9961 1.0000 1.0039 1.0079 1.0118 1.0157 1.0197 1.0236 1.0394 1.0433 1.0469 1.0472 1.0512 1.0551 1.0591 1.0626 1.0630 1.0937 1.1024 1.1063 1.1094 1.1102 1.1142 1.1181 1.1220 1.1248 31/32 Wire/ Let mm 24.610 24.700 24.800 24.900 25.000 25.100 25.200 25.300 25.400 25.500 25.600 25.700 25.800 25.900 26.000 26.400 26.500 26.590 26.600 26.700 26.800 26.900 26.990 27.000 27.780 28.000 28.100 28.180 28.200 28.300 28.400 28.500 28.570 63/64 1 1 1/64 1 3/64 1 1/16 1 3/32 1 7/64 1 1/8 81-59% Theoretical Percentage of Thread Theor % 84 82 80 78 76 74 72 69 67 65 63 61 59 57 55 79 75 72 72 68 65 61 58 57 84 80 77 76 75 73 71 69 67 Tap Size dec 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-7 1 1/4-12 1 1/4-12 1 1/4-12 1 1/4-12 1 1/4-12 1 1/4-12 1 1/4-12 1 1/4-12 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-6 1 3/8-12 1 3/8-12 1 3/8-12 1.1260 1.1299 1.1339 1.1378 1.1406 1.1614 1.1654 1.1693 1.1720 1.1732 1.1772 1.1811 1.1850 1.1969 1.2008 1.2031 1.2047 1.2087 1.2126 1.2165 1.2189 1.2205 1.2244 1.2283 1.2323 1.2343 1.2362 1.2402 1.2441 1.2480 1.2874 1.2913 1.2953 Fract Wire/ Let mm 28.600 28.700 28.800 28.900 28.970 29.500 29.600 29.700 29.770 29.800 29.900 30.000 30.100 30.400 30.500 30.560 30.600 30.700 30.800 30.900 30.960 31.000 31.100 31.200 31.300 31.350 31.400 31.500 31.600 31.700 32.700 32.800 32.900 1 9/64 1 11/64 1 13/64 1 7/32 81-59% Theoretical Percentage of Thread Theor % 67 65 63 60 59 82 78 75 72 71 67 64 60 82 80 79 79 77 75 73 72 71 70 68 66 65 64 62 60 59 81 77 74 Tap Size dec Fract 1 3/8-12 1 3/8-12 1 3/8-12 1 3/8-12 1 3/8-12 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-6 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1 1/2-12 1.2969 1.2992 1.3031 1.3071 1.3110 1.3228 1.3268 1.3280 1.3307 1.3346 1.3386 1.3425 1.3437 1.3465 1.3504 1.3543 1.3583 1.3594 1.3622 1.3661 1.3701 1.3740 1.3748 1.4134 1.4173 1.4213 1.4220 1.4252 1.4291 1.4331 1.4370 1.4374 1 19/64 Wire/ Let mm 32.940 33.000 33.100 33.200 33.300 33.600 33.700 33.730 33.800 33.900 34.000 34.100 34.130 34.200 34.300 34.400 34.500 34.530 34.600 34.700 34.800 34.900 34.920 35.900 36.000 36.100 36.120 36.200 36.300 36.400 36.500 36.510 1 21/64 1 3/8 1 27/64 1 7/16 Theor % 72 70 66 63 59 82 80 79 78 76 75 73 72 71 69 67 65 65 64 62 60 58 58 80 76 73 72 69 65 62 58 58 -ETRICæ4APæ$RILLæ3IZES 81-59% Theoretical Percentage of Thread dec M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.35 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3x0.50 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M3.5x0.60 M4x0.50 M4x0.50 0.1035 0.1039 0.1043 0.1047 0.1051 0.1055 0.1059 0.1063 0.1067 0.1071 0.1075 0.0976 0.0980 0.0984 0.0988 0.0992 0.0996 0.1000 0.1004 0.1008 0.1012 0.1016 0.1020 0.1024 0.1028 0.1031 0.1130 0.1134 0.1138 0.1142 0.1146 0.1150 0.1154 0.1157 0.1161 0.1165 0.1169 0.1173 0.1177 0.1181 0.1185 0.1189 0.1193 0.1197 0.1370 0.1374 Fract 37 36 40 39 38 33 32 mm 2.630 2.640 2.650 2.660 2.670 2.680 2.690 2.700 2.710 2.720 2.730 2.480 2.490 2.500 2.510 2.520 2.530 2.540 2.550 2.560 2.570 2.580 2.590 2.600 2.610 2.620 2.870 2.880 2.890 2.900 2.910 2.920 2.930 2.940 2.950 2.960 2.970 2.980 2.990 3.000 3.010 3.020 3.030 3.040 3.480 3.490 81-59% Theoretical Percentage of Thread Theor % 81 79 77 75 73 70 68 66 64 62 59 80 79 77 75 74 72 71 69 68 66 65 63 62 60 59 81 80 78 77 76 74 73 72 71 69 68 67 65 64 63 62 60 59 80 79 Tap Size dec M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.50 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M4x0.70 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 M5x0.50 0.1378 0.1382 0.1386 0.1390 0.1394 0.1398 0.1402 0.1406 0.1409 0.1413 0.1417 0.1421 0.1425 0.1283 0.1287 0.1291 0.1295 0.1299 0.1303 0.1307 0.1311 0.1315 0.1319 0.1323 0.1327 0.1331 0.1335 0.1339 0.1343 0.1346 0.1350 0.1354 0.1358 0.1362 0.1764 0.1768 0.1772 0.1776 0.1780 0.1783 0.1787 0.1791 0.1795 0.1799 0.1803 0.1807 Fract 9/64 Wire/ Let 28 30 29 16 15 mm 3.500 3.510 3.520 3.530 3.540 3.550 3.560 3.570 3.580 3.590 3.600 3.610 3.620 3.260 3.270 3.280 3.290 3.300 3.310 3.320 3.330 3.340 3.350 3.360 3.370 3.380 3.390 3.400 3.410 3.420 3.430 3.440 3.450 3.460 4.480 4.490 4.500 4.510 4.520 4.530 4.540 4.550 4.560 4.570 4.580 4.590 81-59% Theoretical Percentage of Thread Theor % 77 75 74 72 71 69 68 66 65 63 62 60 59 81 80 79 78 77 76 75 74 73 71 70 69 68 67 66 65 64 63 62 60 59 80 79 77 75 74 72 71 69 68 66 65 63 Tap Size dec M5x0.50 M5x0.50 M5x0.50 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M5x0.80 M6x0.50 M6x0.50 M6x0.50 M6x0.50 M6x0.50 M6x0.75 M6x0.75 M6x0.75 M6x0.75 M6x0.75 M6x0.75 M6x0.75 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 0.1811 0.1815 0.1819 0.1638 0.1642 0.1646 0.1650 0.1654 0.1657 0.1661 0.1665 0.1669 0.1673 0.1677 0.1681 0.1685 0.1689 0.1693 0.1697 0.1701 0.1705 0.1709 0.1713 0.1717 0.1720 0.1724 0.1728 0.2165 0.2185 0.2189 0.2205 0.2209 0.2055 0.2067 0.2087 0.2091 0.2106 0.2126 0.2130 0.1949 0.1953 0.1957 0.1961 0.1965 0.1969 0.1988 Fract Wire/ Let 14 19 18 11/64 17 7/32 2 5 4 3 9 mm 4.600 4.610 4.620 4.160 4.170 4.180 4.190 4.200 4.210 4.220 4.230 4.240 4.250 4.260 4.270 4.280 4.290 4.300 4.310 4.320 4.330 4.340 4.350 4.360 4.370 4.380 4.390 5.500 5.550 5.560 5.600 5.610 5.220 5.250 5.300 5.310 5.350 5.400 5.410 4.950 4.960 4.970 4.980 4.990 5.000 5.050 Theor % 62 60 59 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 64 63 62 61 60 59 77 69 68 62 60 80 77 72 71 67 62 61 81 80 79 79 78 77 73 149 Technical Tap Size Wire/ Let -ETRICæ4APæ$RILLæ3IZES Technical 81-59% Theoretical Percentage of Thread Tap Size dec M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M6x1.00 M7x0.75 M7x0.75 M7x0.75 M7x0.75 M7x1.00 M7x1.00 M7x1.00 M7x1.00 M7x1.00 M7x1.00 M7x1.00 M8x0.50 M8x0.50 M8x0.50 M8x0.50 M8x0.50 M8x0.75 M8x0.75 M8x0.75 M8x0.75 M8x0.75 M8x1.00 M8x1.00 M8x1.00 M8x1.00 M8x1.00 M8x1.00 M8x1.00 M8x1.00 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M8x1.25 M9x1.00 M9x1.00 M9x1.00 M9x1.00 M9x1.00 M9x1.00 M9x1.00 M10x0.75 M10x0.75 M10x0.75 M10x0.75 M10x0.75 M10x1.00 M10x1.00 M10x1.00 M10x1.00 M10x1.00 M10x1.00 M10x1.00 M10x1.00 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.25 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M10x1.50 M11x1.00 0.1992 0.2008 0.2012 0.2028 0.2031 0.2039 0.2047 0.2055 0.2461 0.2480 0.2500 0.2520 0.2343 0.2362 0.2378 0.2382 0.2402 0.2421 0.2441 0.2949 0.2953 0.2969 0.2972 0.2992 0.2854 0.2874 0.2894 0.2902 0.2913 0.2736 0.2756 0.2768 0.2776 0.2795 0.2811 0.2815 0.2835 0.2638 0.2657 0.2677 0.2697 0.2717 0.2736 0.2756 0.2768 0.2776 0.3130 0.3150 0.3161 0.3169 0.3189 0.3209 0.3228 0.3642 0.3661 0.3677 0.3681 0.3701 0.3524 0.3543 0.3563 0.3579 0.3583 0.3594 0.3602 0.3622 0.3425 0.3437 0.3445 0.3465 0.3480 0.3484 0.3504 0.3524 0.3543 0.3563 0.3319 0.3327 0.3346 0.3366 0.3386 0.3390 0.3406 0.3425 0.3437 0.3445 0.3465 0.3480 0.3484 0.3917 150 Fract Wire/ Let 8 7 13/64 6 5 D 1/4 E 15/64 B C M 19/64 L J 9/32 17/64 K H I J O P U T 23/64 11/32 S Q R 11/32 S mm 5.060 5.100 5.110 5.150 5.160 5.180 5.200 5.220 6.250 6.300 6.350 6.400 5.950 6.000 6.040 6.050 6.100 6.150 6.200 7.490 7.500 7.540 7.550 7.600 7.250 7.300 7.350 7.370 7.400 6.950 7.000 7.030 7.050 7.100 7.140 7.150 7.200 6.700 6.750 6.800 6.850 6.900 6.950 7.000 7.030 7.050 7.950 8.000 8.030 8.050 8.100 8.150 8.200 9.250 9.300 9.340 9.350 9.400 8.950 9.000 9.050 9.090 9.100 9.130 9.150 9.200 8.700 8.730 8.750 8.800 8.840 8.850 8.900 8.950 9.000 9.050 8.430 8.450 8.500 8.550 8.600 8.610 8.650 8.700 8.730 8.750 8.800 8.840 8.850 9.950 81-59% Theoretical Percentage of Thread Theor % 72 69 69 65 65 63 62 60 77 72 67 62 81 77 74 73 69 65 62 79 77 71 69 62 77 72 67 65 62 81 77 75 73 69 66 65 62 80 77 74 71 68 65 62 60 59 81 77 75 73 69 65 62 77 72 68 67 62 81 77 73 70 69 67 65 62 80 78 77 74 71 71 68 65 62 59 81 80 77 74 72 71 69 67 65 64 62 60 59 81 Tap Size dec M11x1.00 M11x1.00 M11x1.00 M11x1.00 M11x1.00 M11x1.00 M12x1.00 M12x1.00 M12x1.00 M12x1.00 M12x1.00 M12x1.00 M12x1.00 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.25 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.50 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M12x1.75 M14x1.00 M14x1.00 M14x1.00 M14x1.00 M14x1.00 M14x1.00 M14x1.25 M14x1.25 M14x1.25 M14x1.25 M14x1.25 M14x1.25 M14x1.25 M14x1.25 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x1.50 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M14x2.00 M15x1.00 M15x1.00 M15x1.00 M15x1.00 M15x1.00 M15x1.00 M15x1.50 0.3937 0.3957 0.3969 0.3976 0.3996 0.4016 0.4311 0.4331 0.4350 0.4370 0.4374 0.4390 0.4409 0.4213 0.4220 0.4232 0.4252 0.4272 0.4291 0.4311 0.4331 0.4350 0.4114 0.4130 0.4134 0.4154 0.4173 0.4193 0.4213 0.4220 0.4232 0.4252 0.4272 0.3996 0.4016 0.4035 0.4039 0.4055 0.4063 0.4075 0.4094 0.4114 0.4130 0.4134 0.4154 0.4173 0.4193 0.5098 0.5118 0.5138 0.5157 0.5177 0.5197 0.5000 0.5020 0.5039 0.5059 0.5079 0.5098 0.5118 0.5138 0.4902 0.4921 0.4941 0.4961 0.4980 0.5000 0.5020 0.5039 0.5059 0.4685 0.4689 0.4705 0.4724 0.4744 0.4764 0.4783 0.4803 0.4823 0.4843 0.4862 0.4882 0.4902 0.5492 0.5512 0.5531 0.5551 0.5571 0.5591 0.5295 Fract Wire/ Let X 7/16 27/64 Z 27/64 Y 13/32 Z 33/64 1/2 1/2 15/32 31/64 mm 10.000 10.050 10.080 10.100 10.150 10.200 10.950 11.000 11.050 11.100 11.110 11.150 11.200 10.700 10.720 10.750 10.800 10.850 10.900 10.950 11.000 11.050 10.450 10.490 10.500 10.550 10.600 10.650 10.700 10.720 10.750 10.800 10.850 10.150 10.200 10.250 10.260 10.300 10.320 10.350 10.400 10.450 10.490 10.500 10.550 10.600 10.650 12.950 13.000 13.050 13.100 13.150 13.200 12.700 12.750 12.800 12.850 12.900 12.950 13.000 13.050 12.450 12.500 12.550 12.600 12.650 12.700 12.750 12.800 12.850 11.900 11.910 11.950 12.000 12.050 12.100 12.150 12.200 12.250 12.300 12.350 12.400 12.450 13.950 14.000 14.050 14.100 14.150 14.200 13.450 81-59% Theoretical Percentage of Thread Theor % 77 73 71 69 65 62 81 77 73 69 69 65 62 80 79 77 74 71 68 65 62 59 80 77 77 74 72 69 67 66 64 62 59 81 79 77 77 75 74 73 70 68 66 66 64 62 59 81 77 73 69 65 62 80 77 74 71 68 65 62 59 80 77 74 72 69 67 64 62 59 81 80 79 77 75 73 71 69 67 65 64 62 60 81 77 73 69 65 62 80 Tap Size dec Fract M15x1.50 M15x1.50 M15x1.50 M15x1.50 M15x1.50 M15x1.50 M15x1.50 M15x1.50 M15x1.50 M16x1.00 M16x1.00 M16x1.00 M16x1.00 M16x1.00 M16x1.00 M16x1.00 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x1.50 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M16x2.00 M18x1.00 M18x1.00 M18x1.00 M18x1.00 M18x1.00 M18x1.00 M18x1.00 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x1.50 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.00 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M18x2.50 M20x1.50 M20x1.50 M20x1.50 M20x1.50 0.5311 0.5315 0.5335 0.5354 0.5374 0.5394 0.5413 0.5433 0.5453 0.5886 0.5906 0.5925 0.5937 0.5945 0.5965 0.5984 0.5689 0.5709 0.5728 0.5748 0.5768 0.5787 0.5807 0.5827 0.5846 0.5469 0.5472 0.5492 0.5512 0.5531 0.5551 0.5571 0.5591 0.5610 0.5626 0.5630 0.5650 0.5669 0.5689 0.6673 0.6693 0.6713 0.6720 0.6732 0.6752 0.6772 0.6476 0.6496 0.6516 0.6535 0.6555 0.6563 0.6575 0.6594 0.6614 0.6634 0.6260 0.6280 0.6299 0.6319 0.6339 0.6358 0.6378 0.6398 0.6406 0.6417 0.6437 0.6457 0.6476 0.6063 0.6083 0.6094 0.6102 0.6122 0.6142 0.6161 0.6181 0.6201 0.6220 0.6240 0.6248 0.6260 0.6280 0.6299 0.6319 0.6339 0.7264 0.7283 0.7303 0.7323 17/32 19/32 35/64 9/16 43/64 21/32 41/64 39/64 5/8 Wire/ Let mm 13.490 13.500 13.550 13.600 13.650 13.700 13.750 13.800 13.850 14.950 15.000 15.050 15.080 15.100 15.150 15.200 14.450 14.500 14.550 14.600 14.650 14.700 14.750 14.800 14.850 13.890 13.900 13.950 14.000 14.050 14.100 14.150 14.200 14.250 14.290 14.300 14.350 14.400 14.450 16.950 17.000 17.050 17.070 17.100 17.150 17.200 16.450 16.500 16.550 16.600 16.650 16.670 16.700 16.750 16.800 16.850 15.900 15.950 16.000 16.050 16.100 16.150 16.200 16.250 16.270 16.300 16.350 16.400 16.450 15.400 15.450 15.480 15.500 15.550 15.600 15.650 15.700 15.750 15.800 15.850 15.870 15.900 15.950 16.000 16.050 16.100 18.450 18.500 18.550 18.600 Theor % 77 77 74 72 69 67 64 62 59 81 77 73 71 69 65 62 80 77 74 72 69 67 64 62 59 81 81 79 77 75 73 71 69 67 66 65 64 62 60 81 77 73 72 69 65 62 80 77 74 72 69 68 67 64 62 59 81 79 77 75 73 71 69 67 67 65 64 62 60 80 79 78 77 75 74 72 71 69 68 66 66 65 63 62 60 59 80 77 74 72 -ETRICæ4APæ$RILLæ3IZES 81-59% Theoretical Percentage of Thread dec Fract M20x1.50 M20x1.50 M20x1.50 M20x1.50 M20x1.50 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.00 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M20x2.50 M22x1.00 M22x1.00 M22x1.00 M22x1.00 M22x1.00 M22x1.00 M22x1.00 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x1.50 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.00 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 0.7343 0.7362 0.7382 0.7402 0.7421 0.7047 0.7067 0.7087 0.7106 0.7126 0.7146 0.7165 0.7185 0.7189 0.7205 0.7224 0.7244 0.7264 0.6850 0.6870 0.6874 0.6890 0.6909 0.6929 0.6949 0.6969 0.6988 0.7008 0.7028 0.7031 0.7047 0.7067 0.7087 0.7106 0.7126 0.8248 0.8268 0.8280 0.8287 0.8307 0.8327 0.8346 0.8051 0.8071 0.8091 0.8110 0.8126 0.8130 0.8150 0.8169 0.8189 0.8209 0.7835 0.7854 0.7874 0.7894 0.7913 0.7933 0.7953 0.7969 0.7972 0.7992 0.8012 0.8031 0.8051 0.7638 0.7657 0.7677 0.7697 0.7717 0.7736 0.7756 0.7776 0.7795 47/64 23/32 11/16 45/64 53/64 13/16 51/64 49/64 mm 18.650 18.700 18.750 18.800 18.850 17.900 17.950 18.000 18.050 18.100 18.150 18.200 18.250 18.260 18.300 18.350 18.400 18.450 17.400 17.450 17.460 17.500 17.550 17.600 17.650 17.700 17.750 17.800 17.850 17.860 17.900 17.950 18.000 18.050 18.100 20.950 21.000 21.030 21.050 21.100 21.150 21.200 20.450 20.500 20.550 20.600 20.640 20.650 20.700 20.750 20.800 20.850 19.900 19.950 20.000 20.050 20.100 20.150 20.200 20.240 20.250 20.300 20.350 20.400 20.450 19.400 19.450 19.500 19.550 19.600 19.650 19.700 19.750 19.800 81-59% Theoretical Percentage of Thread Theor % 69 67 64 62 59 81 79 77 75 73 71 69 67 67 65 64 62 60 80 79 78 77 75 74 72 71 69 68 66 66 65 63 62 60 59 81 77 75 73 69 65 62 80 77 74 72 70 69 67 64 62 59 81 79 77 75 73 71 69 68 67 65 64 62 60 80 79 77 75 74 72 71 69 68 Tap Size dec Fract M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M22x2.50 M24x1.00 M24x1.00 M24x1.00 M24x1.00 M24x1.00 M24x1.00 M24x1.00 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x1.50 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x2.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M24x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x3.00 M27x2.00 M27x2.00 M27x2.00 M27x2.00 M27x2.00 0.7811 0.7815 0.7835 0.7854 0.7874 0.7894 0.7913 0.9035 0.9055 0.9063 0.9075 0.9094 0.9114 0.9134 0.8839 0.8858 0.8878 0.8898 0.8917 0.8937 0.8957 0.8976 0.8996 0.8622 0.8642 0.8661 0.8681 0.8701 0.8720 0.8740 0.8748 0.8760 0.8780 0.8799 0.8819 0.8839 0.8209 0.8228 0.8248 0.8268 0.8280 0.8287 0.8307 0.8327 0.8346 0.8366 0.8386 0.8406 0.8425 0.8437 0.8445 0.8465 0.8484 0.8504 0.8524 0.8543 0.9370 0.9374 0.9409 0.9449 0.9488 0.9528 0.9531 0.9567 0.9606 0.9646 0.9685 0.9689 0.9724 0.9803 0.9843 0.9882 0.9921 0.9961 25/32 29/32 7/8 53/64 27/32 15/16 61/64 31/32 63/64 Wire/ Let mm 19.840 19.850 19.900 19.950 20.000 20.050 20.100 22.950 23.000 23.020 23.050 23.100 23.150 23.200 22.450 22.500 22.550 22.600 22.650 22.700 22.750 22.800 22.850 21.900 21.950 22.000 22.050 22.100 22.150 22.200 22.220 22.250 22.300 22.350 22.400 22.450 20.850 20.900 20.950 21.000 21.030 21.050 21.100 21.150 21.200 21.250 21.300 21.350 21.400 21.430 21.450 21.500 21.550 21.600 21.650 21.700 23.800 23.810 23.900 24.000 24.100 24.200 24.210 24.300 24.400 24.500 24.600 24.610 24.700 24.900 25.000 25.100 25.200 25.300 81-59% Theoretical Percentage of Thread Theor % 67 66 65 63 62 60 59 81 77 75 73 69 65 62 80 77 74 72 69 67 64 62 59 81 79 77 75 73 71 69 69 67 65 64 62 60 81 80 78 77 76 76 74 73 72 71 69 68 67 66 65 64 63 62 60 59 82 82 80 77 74 72 72 69 67 64 62 61 59 81 77 73 69 65 Tap Size dec Fract M27x2.00 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x3.50 M30x2.00 M30x2.00 M30x2.00 M30x2.00 M30x2.00 M30x2.00 M30x2.00 M30x2.00 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x3.50 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M33x2.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x4.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 M36x3.00 1.0000 1.0354 1.0394 1.0433 1.0469 1.0472 1.0512 1.0551 1.0591 1.0626 1.0630 1.0669 1.0709 1.0748 1.0984 1.1024 1.1063 1.1094 1.1102 1.1142 1.1181 1.1220 1.1535 1.1563 1.1575 1.1614 1.1654 1.1693 1.1732 1.1772 1.1811 1.1850 1.1874 1.1890 1.1929 1.2165 1.2189 1.2205 1.2244 1.2283 1.2323 1.2343 1.2362 1.2402 1.2500 1.2520 1.2559 1.2598 1.2638 1.2657 1.2677 1.2717 1.2756 1.2795 1.2811 1.2835 1.2874 1.2913 1.2953 1.2969 1.2913 1.2953 1.2969 1.2992 1.3031 1.3071 1.3110 1.3126 1.3150 1.3189 1.3228 1.3268 1 1 3/64 1 1/16 1 7/64 1 5/32 1 11/64 1 3/16 1 7/32 1 15/64 1 1/4 1 17/64 1 9/32 1 19/64 1 19/64 1 5/16 Wire/ Let mm 25.400 26.300 26.400 26.500 26.590 26.600 26.700 26.800 26.900 26.990 27.000 27.100 27.200 27.300 27.900 28.000 28.100 28.180 28.200 28.300 28.400 28.500 29.300 29.370 29.400 29.500 29.600 29.770 29.800 29.900 30.000 30.100 30.160 30.200 30.300 30.900 30.960 31.000 31.100 31.200 31.300 31.350 31.400 31.500 31.750 31.800 31.900 32.000 32.100 32.150 32.200 32.300 32.400 32.500 32.540 32.600 32.700 32.800 32.900 32.940 32.800 32.900 32.940 33.000 33.100 33.200 33.300 33.340 33.400 33.500 33.600 33.700 Theor % 62 83 79 77 75 75 73 70 68 66 66 64 62 59 81 77 73 70 69 65 62 58 81 80 79 77 75 71 70 68 66 64 62 62 59 81 79 77 73 69 65 64 62 58 82 81 79 77 75 74 73 71 69 67 67 65 64 62 60 59 82 80 79 77 74 72 69 68 67 64 62 59 151 Technical Tap Size Wire/ Let $RILLæ3IZEæFORæ4HREADæ&ORMING DRILL SIZE FOR THREAD FORMING @ 55% THREAD Metric Threads Metric Threads Tap Dia. Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.91 1.01 1.11 1.29 1.47 1.57 1.67 1.85 2.03 2.15 2.43 2.81 3.28 3.74 4.22 4.81 4.70 5.31 5.72 5.63 6.72 6.63 7.72 7.63 7.53 8.72 8.63 8.53 9.72 9.63 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 DRILL SIZE FOR THREAD FORMING @ 57.5% THREAD UNC / UNF Threads Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.53 9.44 10.72 10.63 10.44 11.63 11.53 11.44 11.35 13.63 13.53 13.44 13.25 14.63 14.44 15.63 15.44 15.25 16.63 16.44 17.63 17.44 17.25 17.07 19.63 19.07 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.61 2.65 2.94 2.96 3.21 3.27 3.87 3.90 4.43 4.53 5.09 5.15 5.88 6.01 7.41 7.54 8.93 9.13 10.43 10.64 11.97 12.23 13.50 13.76 15.01 15.35 18.10 18.46 21.55 24.61 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 Metric Threads Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.90 1.00 1.10 1.28 1.46 1.56 1.66 1.84 2.02 2.14 2.42 2.80 3.27 3.73 4.21 4.80 4.69 5.30 5.71 5.61 6.71 6.61 7.71 7.61 7.51 8.71 8.61 8.51 9.71 9.61 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 Technical Metric Threads Metric Threads Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.90 1.00 1.10 1.28 1.46 1.56 1.66 1.84 2.02 2.14 2.42 2.80 3.26 3.71 4.19 4.80 4.67 5.30 5.69 5.59 6.69 6.59 7.69 7.59 7.49 8.69 8.59 8.49 9.69 9.59 152 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.51 9.41 10.71 10.61 10.41 11.61 11.51 11.41 11.32 13.61 13.51 13.41 13.22 14.61 14.41 15.61 15.41 15.22 16.61 16.41 17.61 17.41 17.22 17.02 19.61 19.02 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.60 2.64 2.93 2.95 3.19 3.26 3.86 3.89 4.41 4.52 5.07 5.13 5.85 6.00 7.39 7.52 8.90 9.11 10.40 10.62 11.94 12.20 13.46 13.74 14.97 15.32 18.06 18.43 21.52 24.57 Metric Threads UNC / UNF Threads Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.49 9.39 10.69 10.59 10.39 11.59 11.49 11.39 11.29 13.59 13.49 13.39 13.18 14.59 14.39 15.59 15.39 15.18 16.59 16.39 17.59 17.39 17.18 16.98 19.59 18.98 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.59 2.63 2.92 2.94 3.18 3.25 3.84 3.88 4.39 4.50 5.05 5.12 5.83 5.98 7.36 7.51 8.88 9.09 10.37 10.59 11.90 12.18 13.42 13.71 14.93 15.30 18.01 18.40 21.48 24.54 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 UNC / UNF Threads Tap Dia. 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 DRILL SIZE FOR THREAD FORMING @ 62.5% THREAD DRILL SIZE FOR THREAD FORMING @ 60% THREAD Tap Dia. Metric Threads Tap Dia. Metric Threads Tap Dia. Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.89 0.99 1.09 1.27 1.45 1.55 1.65 1.83 2.01 2.13 2.41 2.79 3.25 3.70 4.18 4.79 4.66 5.29 5.68 5.58 6.68 6.58 7.68 7.58 7.47 8.68 8.58 8.47 9.68 9.58 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 UNC / UNF Threads Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.47 9.36 10.68 10.58 10.36 11.58 11.47 11.36 11.26 13.58 13.47 13.36 13.15 14.58 14.36 15.58 15.36 15.15 16.58 16.36 17.58 17.36 17.15 16.94 19.58 18.94 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.57 2.62 2.91 2.93 3.17 3.24 3.83 3.87 4.38 4.49 5.04 5.10 5.81 5.96 7.34 7.49 8.85 9.08 10.34 10.57 11.87 12.16 13.39 13.69 14.89 15.28 17.97 18.38 21.45 24.50 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 $RILLæ3IZEæFORæ4HREADæ&ORMING DRILL SIZE FOR THREAD FORMING @ 67.5% THREAD DRILL SIZE FOR THREAD FORMING @ 65% THREAD Metric Threads Metric Threads Tap Dia. Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.89 0.99 1.09 1.27 1.45 1.55 1.65 1.82 2.00 2.12 2.40 2.78 3.23 3.69 4.17 4.78 4.65 5.28 5.67 5.56 6.67 6.56 7.67 7.56 7.45 8.67 8.56 8.45 9.67 9.56 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.45 9.34 10.67 10.56 10.34 11.56 11.45 11.34 11.23 13.56 13.45 13.34 13.12 14.56 14.34 15.56 15.34 15.12 16.56 16.34 17.56 17.34 17.12 16.90 19.56 18.90 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.56 2.61 2.89 2.92 3.15 3.22 3.81 3.85 4.36 4.48 5.02 5.09 5.79 5.95 7.31 7.47 8.82 9.06 10.31 10.55 11.84 12.14 13.35 13.66 14.85 15.25 17.93 18.35 21.42 24.46 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 Metric Threads UNC / UNF Threads Tap Dia. Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.89 0.99 1.09 1.26 1.44 1.54 1.64 1.82 1.99 2.12 2.39 2.77 3.22 3.68 4.16 4.77 4.63 5.27 5.66 5.54 6.66 6.54 7.66 7.54 7.43 8.66 8.54 8.43 9.66 9.54 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 DRILL SIZE FOR THREAD FORMING @ 70% THREAD Metric Threads Metric Threads Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.88 0.98 1.08 1.26 1.43 1.53 1.63 1.81 1.99 2.11 2.39 2.76 3.21 3.67 4.14 4.76 4.62 5.26 5.64 5.52 6.64 6.52 7.64 7.52 7.41 8.64 8.52 8.41 9.64 9.52 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.43 9.31 10.66 10.54 10.31 11.54 11.43 11.31 11.20 13.54 13.43 13.31 13.08 14.54 14.31 15.54 15.31 15.08 16.54 16.31 17.54 17.31 17.08 16.85 19.54 18.85 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.55 2.60 2.88 2.91 3.14 3.21 3.80 3.84 4.34 4.46 5.00 5.07 5.77 5.93 7.29 7.45 8.80 9.04 10.28 10.53 11.80 12.12 13.32 13.64 14.82 15.23 17.88 18.32 21.39 24.43 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 DRILL SIZE FOR THREAD FORMING @ 72.5% THREAD UNC / UNF Threads Tap Dia. Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.41 9.29 10.64 10.52 10.29 11.52 11.41 11.29 11.17 13.52 13.41 13.29 13.05 14.52 14.29 15.52 15.29 15.05 16.52 16.29 17.52 17.29 17.05 16.81 19.52 18.81 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.54 2.59 2.87 2.90 3.13 3.20 3.79 3.83 4.32 4.45 4.98 5.05 5.75 5.92 7.27 7.43 8.77 9.02 10.25 10.51 11.77 12.10 13.28 13.62 14.78 15.20 17.84 18.29 21.36 24.39 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 UNC / UNF Threads Metric Threads Metric Threads Tap Dia. Pitch (mm) Drill size (mm) M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M 0.25 0.25 0.25 0.30 0.35 0.35 0.35 0.40 0.45 0.40 0.45 0.50 0.60 0.70 0.75 0.50 0.80 0.50 0.75 1.00 0.75 1.00 0.75 1.00 1.25 0.75 1.00 1.25 0.75 1.00 0.88 0.98 1.08 1.25 1.43 1.53 1.63 1.80 1.98 2.10 2.38 2.75 3.20 3.65 4.13 4.75 4.61 5.25 5.63 5.51 6.63 6.51 7.63 7.51 7.38 8.63 8.51 8.38 9.63 9.51 1 1.1 1.2 1.4 1.6 1.7 1.8 2 2.2 2.3 2.6 3 3.5 4 4.5 5 5 5.5 6 6 7 7 8 8 8 9 9 9 10 10 Tap Dia. M M M M M M M M M M M M M M M M M M M M M M M M M M 10 10 11 11 11 12 12 12 12 14 14 14 14 15 15 16 16 16 17 17 18 18 18 18 20 20 UNC / UNF Threads Pitch (mm) Drill size (mm) Tap Size TPI Drill size (mm) 1.25 1.50 0.75 1.00 1.50 1.00 1.25 1.50 1.75 1.00 1.25 1.50 2.00 1.00 1.50 1.00 1.50 2.00 1.00 1.50 1.00 1.50 2.00 2.50 1.00 2.50 9.38 9.26 10.63 10.51 10.26 11.51 11.38 11.26 11.14 13.51 13.38 13.26 13.01 14.51 14.26 15.51 15.26 15.01 16.51 16.26 17.51 17.26 17.01 16.77 19.51 18.77 4 4 5 5 6 6 8 8 10 10 12 12 1/4 1/4 5/16 5/16 3/8 3/8 7/16 7/16 1/2 1/2 9/16 9/16 5/8 5/8 3/4 3/4 7/8 1 40 48 40 44 32 40 32 36 24 32 24 28 20 28 18 24 16 24 14 20 13 20 12 18 11 18 10 16 14 12 2.53 2.58 2.86 2.89 3.11 3.19 3.77 3.82 4.30 4.43 4.96 5.04 5.72 5.90 7.24 7.42 8.74 9.00 10.22 10.49 11.74 12.07 13.24 13.59 14.74 15.18 17.80 18.27 21.33 24.36 153 Technical Tap Dia. Metric Threads Tapping Formulas and Calculations " ! # ! $%& &&$% # &&$% ! '() " ! &&"$$ * , +( ) ! Technical " ! *, +( ) %-$ ! +( ) " ! &&&- * , +( ) ! " ! *, +( ) ".%&, 154 4ROUBLESHOOTINGææ!PPLICATIONæPROBLEMSæWITHæNEWæTAPS Problem Thread produced is too large Thread AXIALLYæMISCUT Solution ■ INCORRECTæTAPæTAPæGEOMETRYæNOTæSUITABLE FORæTHEæAPPLICATION ■æAPPLYæCORRECTæTAPæFORæTHEæMATERIAL TOæBEæMACHINED ■ TAPPINGæSIZEæHOLEæTOOæSMALL ■ OBSERVEæTAPPINGæSIZEæHOLEæTABLEæINæTHEæ TECHNICALæSECTIONæ.OTEæDIFFERENTæTAPPINGæ SIZEæHOLEæDIAMETERSæFORæFLUTELESSæTAPS ■ ALIGNMENTæERRORæOFæTAPPING SIZEæHOLEæORæPOSITION ■ æCHECKæFORæCORRECTæTOOLæCLAMPING æAPPLYæFLOATINGæTAPæHOLDER æCHECKæCOREæDRILL ■æMACHINEæSPINDLEæAXIALLYæRESTRICTED ■ææUSEæMECHANICALæFEED æAPPLYæTENSIONCOMPRESSIONæTAPæCHUCK ■ COLDæWELDINGæATæTHEæFLANK OFæTHEæTAP ■ææAPPLYæNEWæTAP æAPPLYæCOATEDæTAP æOPTIMIZEæLUBRICATION ■ LEADæOFæTAPæUNSATISFACTORYæDUE TOæINSUFFICIENTæTHREADæDEPTH ■ææTAPæWITHæFORCEDæFEED æAPPLYæTAPæWITHæMODIFIEDæLEAD ■ CUTTINGæSPEEDæTOOæHIGH ■ææREDUCEæCUTTINGæSPEED æIMPROVEæLUBRICATION ■ LUBRICATIONæORæCOOLANTæSUPPLY INSUFFICIENT ■ ENSUREæSUFFICIENTæANDæSUITABLE COOLANTæSUPPLYæANDæCHECKæCONCENTRATION ■æTOLERANCEæSPECIFICATIONæONæTAPæDOES NOTæCORRESPONDæTOæSPECIFICATIONSæON DRAWINGæANDORæTHREADæGAUGE ■ APPLYæCORRECTæTAPæFORæREQUIRED TOLERANCES ■ SPIRALFLUTEDæTAPS CORRESPONDINGæTOæOURæDESIGN AREæAPPLIEDæWITHæTOOæMUCH PRESSUREæFORæINITIALæTAPPING ■ WITHæSPIRALFLUTEDæTAPSæONLYæLIGHTæPRESSURE REQUIREDæFORæINITIALæTAPPINGæ4HEæTAPæSHOULD IMMEDIATELYæBEæAPPLIEDæWITHINæTHE TENSIONCOMPRESSIONæRANGE ■ INITIALæTAPPINGæPRESSUREæTOO LOWæFORæTAPSæWITHæSPIRALæPOINT CORRESPONDINGæTOæOURæFORMæh"v ■æTAPSæWITHæSPIRALæPOINTæORæLEFTæHANDæSPIRAL REQUIREæHIGHERæAXIALæPRESSURE %NSUREæTAPæOPERATESæWITHINæTHEæTENSION COMPRESSIONæRANGE ■ TOLERANCEæSPECIFICATIONæONæTAPæDOESæNOT CORRESPONDæTOæSPECIFICATIONSæONæDRAWING ANDORæTHREADæGAUGE ■ APPLYæCORRECTæTAPæFORæREQUIRED TOLERANCE ■ INCORRECTæTAP ■ APPLYæCORRECTæTAPæFORæTHEæMATERIALæTOæBE MACHINED ■æTAPæDOESæNOTæCUTæACCURATELY THREADæPLUGæGAUGE ■ AVOIDæSTRONGæAXIALæFORCESæDURINGæTHE CUTTINGæPROCESS ■ MACHINEæSPINDLEæISæAXIALLYæTOOæRIGID ■ APPLYæTENSIONCOMPRESSIONæCHUCK Technical Thread produced is too small Possible causes 155 4ROUBLESHOOTINGææ!PPLICATIONæPROBLEMSæWITHæNEWæTAPS Problem Thread surface not according to requirements Possible causes Solution ■ CUTTINGæEDGEæGEOMETRYæNOTæSUITABLEæFOR THEæAPPLICATION ■ APPLYæhCORRECTvæTAPæFORæTHEæMATERIAL TOæBEæMACHINED ■ CUTTINGæSPEEDæTOOæHIGH ■ æREDUCEæCUTTINGæSPEED æOPTIMIZEæLUBRICATION ■ INSUFFICIENTæCOOLANT CONCENTRATIONæANDæSUPPLY ■ ENSUREæSUITABLEæCOOLANTæANDæSUFFICIENT VOLUME ■æCHIPæCONGESTION ■ APPLYæSUITABLEæTAPæTYPE ■ TAPPINGæSIZEæHOLEæTOOæSMALL ■ OBSERVEæTAPPINGæSIZEæHOLEæDIAMETERæ SPECIFICATIONSæTOæ$).ææORæRESPECTIVEæ STANDARDSæ/BSERVEæTABLEæFORæFLUTELESSæTAPS ■ WITHæTOUGHæHARDæMATERIALSæLOADINGæONæTOOL ■ APPLYæHANDæTAPæSETS TOOæMUCHæORæPITCHæTOOæSTEEP Tool life insufficient ■ APPLYæCOATEDæTAS ■ COLDæWELDING ■ IMPROVEæCOOLANTæSUPPLY ■ SURFACEæHARDENINGæOFæTAPPINGæSIZEæHOLE ■ææCHECKæDRILLæCUTTINGæEDGEæFORæWEAR æHEATæORæSURFACEæTREATMENT æFOLLOWINGæTHREADæPRODUCTION ■æREASONSæLISTEDæUNDERæhTHREADæSURFACE NOTæACCORDINGæTOæREQUIREMENTSh ■æREASONSæLISTEDæUNDERæTHREADæSURFACE hNOTæACCORDINGæTOæREQUIREMENTSh ■ CHIPæCONGESTION ■ APPLYæCORRECTæTAP ■æTAPPINGæSIZEæHOLEæTOOæSMALL ■ OBSERVEæTAPPINGæSIZEæHOLEæDIAæACC TOæ$).ææORæRESPECTIVEæSTANDARDS ■ TEETHæOFæCHAMFERæLEADæOVERLOADED ■ææLONGERæCHAMFERæLEADæBLINDæOR æTHROUGHæHOLE æINCREASEæNOæOFæTEETHæOFæCHAMFERæLEADæBY æINCREASINGæNOæOFæFLUTES æAPPLYæTAPæSETS ■ TAPæHITSæBOTTOMæOFæTAPPING SIZEæHOLE ■ææCHECKæHOLEæDEPTH æAPPLYæTENSIONCOMPRESSION æTAPæCHUCK ■ææLACKæOFæORæINCORRECT æCHAMFERæOFæTAPPINGæSIZEæHOLE æPOSTIONALæORæANGLEæERROR æOFæTAPPINGæSIZEæHOLE ■ææCORRECTæCHAMFERæANGLEæOF æTAPPINGæSIZEæHOLE æENSUREæCORRECTæTOOLæCLAMPING æAPPLYæFLOATINGæTAPæHOLDER æCHECKæCOREæDRILL ■ææTOOLæHARDNESSæNOTæSUITABLE æFORæTHEæAPPLICATION æCUTTINGæEDGEæGEOMETRYæNOTæSUITABLE æFORæTHEæAPPLICATION ■æAPPLYæSUITABLEæTAPæFORæTHEæINDIVIDUAL APPLICATION Technical 4OOLæBREAKAGE DURINGæADVANCEæORæRETURN ■ BUILTUPæEDGE 156 !PPENDIXæOFæ'UHRINGæ4APæ0ARTæ.UMBERS Thread Type Substrate Color ring Style of tap Standard Coolant Chamfer 318 319 323 338 342 347 803 804 810 811 815 816 822 823 827 828 830 833 834 835 873 876 877 878 879 881 889 890 908 909 910 911 919 927 935 936 969 969 971 972 972 977 978 1010 1011 1088 1188 1194 1200 1581 1582 1583 1584 1585 1717 1719 1721 1723 1837 1838 1858 1858 1859 1859 1860 1860 1861 1861 1870 1872 1873 Metric Metric Metric Metric fine Metric Metric fine Metric Metric Metric Metric Metric Metric Metric Metric Metric fine Metric fine Metric fine Metric fine Metric fine Metric fine UNC UNC Metric UNC Metric UNC Metric Metric UNF Metric Metric UNF Metric Metric fine Metric Metric fine Metric Metric Metric Metric fine Metric fine Metric fine Metric fine Metric Metric NPTF Metric Metric Metric fine Metric fine UNC UNC UNF UNF Metric Metric Metric fine Metric fine UNC UNF Metric Metric Metric Metric Metric fine Metric fine Metric fine Metric fine Metric Metric Metric fine Cobalt Cobalt PM cobalt PM cobalt PM cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt PM cobalt Cobalt PM cobalt Cobalt Cobalt Cobalt Cobalt PM cobalt PM cobalt Cobalt Cobalt Cobalt PM cobalt PM cobalt Carbide Carbide Carbide Carbide Carbide Carbide Carbide Cobalt Cobalt Cobalt PM cobalt PM cobalt PM cobalt Carbide Cobalt Cobalt Cobalt Cobalt PM cobalt PM cobalt PM cobalt PM cobalt Cobalt Cobalt Carbide Carbide Carbide Carbide Carbide Carbide Carbide Carbide Cobalt Cobalt Cobalt white ring white ring blind or through hole blind or through hole form tap form tap form tap blind or through hole through hole through hole blind hole blind hole through hole through hole blind hole blind hole through hole through hole blind or through hole blind hole blind hole blind hole through hole blind hole through hole through hole through hole blind hole blind hole blind hole through hole blind hole blind hole blind hole form tap form tap blind hole blind hole blind or through hole blind or through hole blind hole blind or through hole blind or through hole blind hole blind hole through hole blind hole blind hole blind hole blind hole blind hole form tap form tap form tap form tap form tap form tap form tap form tap form tap blind hole blind hole blind or through hole blind or through hole blind or through hole blind or through hole blind or through hole blind or through hole blind or through hole blind or through hole through hole through hole through hole DIN 371 DIN 376 DIN 371 DIN 374 DIN 376 DIN 374 DIN 371 DIN 371 DIN 371 DIN 371 DIN 376 DIN 376 DIN 376 DIN 376 DIN 374 DIN 374 DIN 374 DIN 374 DIN 374 DIN 374 DIN 371 DIN 371 DIN 371 DIN 376 DIN 376 DIN 376 DIN 371 DIN 376 DIN 374 DIN 371 DIN 376 DIN 374 DIN 371 DIN 374 DIN 376 DIN 374 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 374 EG M EG M axial coolant fed axial coolant fed radial coolant fed radial coolant fed radial coolant fed axial coolant fed Form C Form C Form C Form C Form C Form C Form B Form B Form C Form C Form B Form B Form C Form C Form B Form B Form C Form C Form C Form C Form B Form C Form B Form B Form B Form C Form C Form C Form B Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C DIN 371 DIN 376 DIN 376 DIN 374 DIN 371 DIN 376 DIN 371 DIN 376 DIN 371 DIN 376 DIN 371 DIN 374 DIN 371 DIN 374 DIN 371 DIN 371 DIN 376 DIN 376 DIN 371 DIN 374 DIN 376 DIN 371 DIN 371 DIN 376 DIN 374 axial coolant fed axial coolant fed axial coolant fed radial coolant fed white ring yellow ring red ring yellow ring red ring yellow ring red ring yellow ring red ring yellow ring red ring yellow ring yellow ring yellow ring red ring yellow ring yellow ring blue ring yellow ring blue ring yellow ring green ring green ring yellow ring blue ring blue ring yellow ring red ring blue ring black ring white ring black ring black ring white ring black ring black ring green ring green ring blue ring red ring red ring red ring green ring green ring black ring white ring black ring white ring black ring white ring black ring white ring blue ring blue ring blue ring axial coolant fed axial coolant fed axial coolant fed axial coolant fed axial coolant fed axial coolant fed axial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed radial coolant fed Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C(K) Form C(K) Form C Form C Form C Form C Form C Form C Form C Form C Form B Form B Form B * All carbide form taps will be changing to TiCN coating as inventory levels are replenished Helix 40° helix 40° helix 40° helix 40° helix 15° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 15° helix 40° helix 15° helix 15° helix 15° helix 15° helix 15° helix 15° helix 40° helix 40° helix Surface Tolerance Page TiAlN coated TiAlN coated TiN coated TiN coated TiN coated TiAlN coated bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish TiN coated TiN coated bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish TiN coated TiN coated TiN coated TiCN coated TiCN coated TiCN coated *TiCN coated TiN coated TiN coated TiN coated TiN coated AlCrN AlCrN AlCrN AlCrN TiN coated TiN coated bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish bright finish 6HX 6HX 6HX 6HX 6HX 6HX ISO 2(6H) 6H ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) 2B 2B ISO 2(6H) 2B ISO 2(6H) 2B ISO 2(6H) ISO 2(6H) 2B ISO 2(6H) ISO 2(6H) 2B 6HX 6HX ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) 6H mod 6H mod 98 98 126 128 127 98 32 80 38 85 33 80 38 86 34 81 35 39 39 88 30 36 69 30 68 36 51 51 31 72 72 37 126 128 87 72 97 6HX 6HX 6HX 6HX 2BX 2BX 2BX 2BX 6HX 6HX 6HX 6HX 2B 2B ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) 97 106 97 97 107 107 62 63 74 87 87 87 129 123 123 124 124 126 127 129 128 46 47 94 94 94 94 95 95 95 95 69 68 69 157 Technical Series Technical !PPENDIXæOFæ'UHRINGæ4APæ0ARTæ.UMBERS Series Thread Type Substrate Color ring Style of tap 1883 1883 1890 1894 1897 1901 1904 1907 1914 1915 1916 1917 1927 1931 1972 1979 1980 1981 1984 1985 1986 1989 1990 2424 2790 2791 2792 2867 2876 2879 2881 2883 2885 2895 2896 2897 2901 2903 2905 2907 2909 2910 2912 2914 2916 2917 2918 2919 2920 2921 2922 2923 2944 3900 3901 3902 3903 3904 3905 3906 3907 3908 3909 3910 3911 3912 3913 3914 3915 3916 Metric Metric Metric Metric Metric Metric Metric fine Metric fine Metric Metric Metric Metric Metric Metric Metric UNC UNC UNC UNC UNC UNC UNF UNF Metric fine Metric Metric Metric fine UNF Metric Metric fine UNC UNC UNF Metric Metric Metric fine Metric Metric fine UNC UNF Metric Metric fine UNC UNF Metric Metric fine UNC UNF Metric Metric fine UNC UNF Metric Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC Carbide Carbide Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Carbide Carbide Carbide Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt Carbide Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt Cobalt Cobalt Cobalt Cobalt Cobalt black ring white ring white ring red ring white ring red ring white ring red ring red ring red ring red ring red ring blind hole blind hole through hole blind hole through hole blind hole blind or through hole blind hole through hole through hole blind hole blind hole form tap form tap form tap blind or through hole through hole blind hole blind or through hole through hole blind hole blind or through hole through hole blind hole blind hole blind hole blind hole blind hole through hole through hole through hole through hole through hole blind hole blind hole blind hole through hole through hole through hole through hole blind hole blind hole blind hole blind hole through hole through hole through hole through hole blind hole blind hole blind hole blind hole blind hole through hole through hole through hole blind hole blind hole blind hole through hole through hole through hole blind hole blind hole blind hole through hole through hole through hole through hole through hole 158 white ring blue ring blue ring white ring blue ring blue ring white ring blue ring green ring green ring green ring green ring blue ring green ring green ring green ring green ring green ring blue ring blue ring blue ring Ti Ti Ti Ti Ti Ti Ti Ti Ni Ni Ni Ni Ni Ni Ni Ni red ring yellow ring yellow ring yellow ring yellow ring yellow ring yellow ring blue ring blue ring blue ring blue ring blue ring blue ring green ring green ring green ring green ring green ring Standard DIN 376 DIN 376 DIN 371 DIN 371 DIN 376 DIN 376 DIN 374 DIN 374 DIN 371 DIN 376 DIN 371 DIN 376 DIN 371 DIN 376 DIN 371 DIN 371 DIN 371 DIN 371 DIN 376 DIN 376 DIN 376 DIN 374 DIN 374 DIN 374 DIN 371 DIN 376 DIN 374 DIN 374 DIN 371 DIN 374 DIN 371 DIN 376 DIN 374 DIN 376 DIN 371 DIN 374 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 DIN 371 Guhring Std. ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI Coolant Chamfer axial coolant fed Form C Form C Form C Form C Form C Form C Form C Form C Form B Form B Form C Form C Form E Form C Form C Form C Form B Form C Form C Form B Form C Form C Form B Form C Form E Form E Form E Form C Form B Form B Form B Form B Form B Form C Form C Form C Form B Form B Form B Form B Form C Form C Form C Form C Form B Form B Form B Form B Form C Form C Form C Form C Form D Form B Form B Form B Form C Form C Form C Form B Form B Form B Form C Form C Form C Form B Form B Form B Form B Form B axial coolant fed axial coolant fed axial coolant fed axial coolant fed radial coolant fed radial coolant fed radial coolant fed Helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 15° helix 15° helix 15° helix 15° helix 15° helix 15° helix 15° helix 10° helix 10° helix 10° helix 10° helix 0° helix * All carbide form taps will be changing to TiCN coating as inventory levels are replenished 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix Surface Tolerance Page bright finish bright finish oxide finish bright finish oxide finish bright finish oxide finish bright finish TiCN coated TiCN coated TiCN coated TiCN coated *TiCN coated *TiCN coated *TiCN coated oxide finish bright finish bright finish oxide finish bright finish bright finish oxide finish bright finish bright finish bright finish bright finish bright finish bright finish oxide finish oxide finish oxide finish oxide finish oxide finish TiN coated TiN coated TiN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiAlN coated TiAlN coated TiAlN coated TiAlN coated TiAlN coated TiAlN coated TiAlN coated TiAlN coated TiCN coated bright finish bright finish bright finish bright finish bright finish bright finish TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated bright finish bright finish bright finish TiN coated TiN coated ISO 2(6H) ISO 2(6H) 6HX ISO 2(6H) 6HX ISO 2(6H) 6HX ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) 6HX 6HX 6HX 2B 2B 2B 2B 2B 2B 2B 2B ISO 2(6H) ISO 2(6H) ISO 2(6H) ISO 2(6H) 2B 6H ISO 2(6H) 2B 2B 2B ISO 2(6H) 97 97 98 85 98 85 98 88 80 80 85 86 126 127 126 92 66 70 92 66 70 93 67 52 53 53 54 71 44 45 42 42 43 73 73 73 111 111 110 110 113 113 112 112 111 111 110 110 113 113 112 112 86 32 30 31 38 36 37 68 66 67 72 70 71 44 42 43 44 42 ISO 2(6H) ISO 2(6H) 6HX 6HX 2BX 2BX 6HX 6HX 2BX 2BX 6HX 6HX 2BX 2BX 6HX 6HX 2BX 2BX ISO 2(6H) 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B !PPENDIXæOFæ'UHRINGæ4APæ0ARTæ.UMBERS Thread Type Substrate Color ring Style of tap Standard 3917 3918 3919 3920 3921 3922 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 3939 3940 3941 3942 3943 3944 3945 3946 3947 3948 3949 3950 3954 3955 3959 3960 3961 3962 3963 3964 3965 3966 3967 3968 3969 3970 3971 3972 3973 3974 3975 3976 3977 3978 3979 3980 3981 3982 3983 3984 3985 3986 3987 3988 3989 3990 3991 3992 UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF UNC UNF UNC Metric UNC UNF Metric UNC UNF Metric UNC UNF Metric UNC UNF UNF Metric fine Metric fine Metric fine Metric UNC UNF Metric UNC / oversized UNF / oversized UNC / oversized UNF / oversized UNC / oversized UNF / oversized UNC / oversized UNF / oversized UNC / STI UNF / STI UNC / STI UNF / STI UNC Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt Cobalt PM cobalt green ring green ring green ring green ring green ring green ring green ring black ring black ring black ring black ring black ring black ring black ring black ring black ring black ring black ring black ring white ring white ring white ring through hole blind hole blind hole blind hole blind hole blind hole blind hole through hole through hole through hole through hole through hole through hole blind hole blind hole blind hole blind hole blind hole blind hole blind or through hole blind or through hole blind or through hole form tap form tap form tap form tap form tap form tap through hole through hole through hole blind hole blind hole blind hole blind hole blind hole form tap through hole through hole through hole blind hole blind hole blind hole through hole through hole through hole blind hole blind hole blind hole form tap through hole blind hole form tap blind hole blind hole blind hole form tap blind hole blind hole through hole through hole blind hole blind hole through hole through hole blind hole blind hole through hole through hole through hole ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI ANSI STI Tap STI Tap STI Tap STI Tap DIN / ANSI green ring green ring green ring green ring green ring green ring green ring green ring yellow ring yellow ring yellow ring yellow ring yellow ring yellow ring black ring black ring black ring black ring black ring black ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring green ring red ring Coolant Chamfer axial coolant fed axial coolant fed Form B Form C Form C Form C Form C Form C Form C Form B Form B Form B Form B Form B Form B Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form C Form B Form B Form B Form C Form C Form C Form C Form C Form E Form B Form B Form B Form C Form C Form C Form B Form B Form B Form C Form C Form C Form E Form B Form C Form C Form E Form E Form E Form E Form C Form C Form B Form B Form C Form C Form B Form B Form C Form C Form B Form B Form B Helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 45° helix 45° helix 45° helix 45° helix 45° helix 45° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 45° helix 45° helix 45° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix 40° helix Surface TiN coated bright finish bright finish bright finish TiN coated TiN coated TiN coated bright finish bright finish bright finish TiN coated TiN coated TiN coated bright finish bright finish bright finish TiN coated TiN coated TiN coated FIREX® coated FIREX® coated FIREX® coated TiN coated TiN coated TiN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiCN coated TiN coated TiN coated TiN coated MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® MolyGlide® TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated Tolerance Page 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 6HX 2B 2B 6HX 2BX 2BX 6HX 2BX 2BX 6H 2B 2B 6H 2B 2B 2B 2B 2BX 6H 2B 2B 6H 2B 2B 6H 2B 2B 6H 2B 2B 2BX 6H 6H 6HX 6H 2B 2B 6HX H7 H7 H7 H7 H11 H11 H11 H11 3B 3B 3B 3B 2B 43 50 46 47 50 46 47 103 102 102 103 102 102 106 105 105 106 105 105 94 92 93 125 122 123 125 122 123 44 42 43 50 46 47 49 49 122 32 30 31 38 36 37 103 102 102 106 105 105 124 45 52 127 53 48 48 125 58 59 56 57 58 59 56 57 61 61 60 60 78 159 Technical Series !PPENDIXæOFæ'UHRINGæ4APæ0ARTæ.UMBERS Thread Type Substrate Color ring Style of tap Standard 3993 3994 3995 3996 3997 3998 3999 4118 4119 4120 4121 4122 4123 4124 4125 4126 4127 UNC UNF UNF UNC UNF UNC UNF UNC UNF Metric Metric Fine Metric Metric Fine UNC UNF Metric NPTF PM cobalt PM cobalt PM cobalt Cobalt Cobalt Cobalt Cobalt Carbide Carbide PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt PM cobalt Cobalt Cobalt red ring red ring red ring blue ring blue ring blue ring blue ring white ring white ring red ring red ring red ring red ring red ring red ring green ring blue ring blind hole through hole blind hole through hole through hole blind hole blind hole blind hole blind hole blind hole blind hole through hole through hole blind hole blind hole blind hole blind hole DIN / ANSI DIN / ANSI DIN / ANSI ANSI ANSI ANSI ANSI DIN/ANSI DIN/ANSI DIN / ANSI DIN / ANSI DIN / ANSI DIN / ANSI DIN / ANSI DIN / ANSI ANSI Technical Series 160 Coolant Chamfer Helix Surface 40° helix axial coolant fed axial coolant fed Form C Form B Form C Form B Form B Form C Form C Form C Form C Form C Form C Form B Form B Form C Form C Form C TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated bright finish bright finish TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated TiN coated axial coolant fed 40° helix 40° helix 40° helix 15° helix 15° helix 40° helix Tolerance Page 2B 2B 2B 3B 3B 3B 3B 2B 2B 6H 6H 6H 6H 2B 2B 2B 82 78 82 66 67 70 67 96 96 84 84 79 79 83 83 50 74 STANDARD & SPECIAL PRODUCT RANGE • Carbide Standards • GU 500 DZ Universal Drills RT 100 U/ F High Penetration Drills RT 100 X High Penetration Drills RT 100 VA Drills for Stainless Steels RT 100 R High Penetration Drills RT 100 T Deep Hole Drills Coolant-Through RT 100 U/ F/C High Penetration Drills Coolant-Through RT 150 GG Straight-Flute High Penetration Drills Coolant-Through HT/ RT 800 WP Interchangeable Insert Drills GS 200 U/G Three-Flute High Precision Drills GT 100 Parabolic Flute Deep Hole Drills Exclusive Line ® Small-Diameter Drills EB 100 Small-Diameter Single-Flute Gun Drills General Purpose Drills NC Spot Drills PRO-Line Universal End Mills TECH-Line High Performance End Mills GT 100 Parabolic Flute Deep Hole Drills Coolant-Through GT 100 IC Parabolic Flute Deep Hole Drills GT 80 Parabolic Flute Deep Hole Drills Coolant-Through GT 80 IC Parabolic Flute Deep Hole Drills GT 50 Parabolic Flute Deep Hole Drills General Purpose Drills Heavy Duty Drills Heavy Duty Split Point Drills Low Helix Drills High Helix Drills Micro-Precision Drills NC Spot Drills Drill-Countersinks High Performance HSS-E Taps High Performance PM HSS-E Taps • HSS & HSCO Specials • Drills Step Drills Step Drill Reamers Step Core Drills Step Core Drill Reamers Reamers Step Reamers Subland Drills Subland Drill Reamers Subland Core Drills Taps DISTRIBUTED BY: Ne w! GT 500 DZ High Performance Drills • PCD Specials • • Coating Services • Ne w! • HSS, HSCO & PM Standards • Titanium Nitride (TiN) Titanium Carbonitride (TiCN) Titanium Aluminum Nitride (TiAlN) FIREX® Special Multilayer Hard Coating Super A (AlTiN) MolyGlide ® Lubricating Soft Coating Nitride / Steam Oxide nano-FIREX® micro thin film gradient structure • Reconditioning Service • • GM 300 Modular HSK • Toolholding System Hydraulic / Shrink / Collet Chucks Adapters Collets • GE 100 Modular • Tooling System • Carbide Specials • Drills RT High Performance Drills G Drills Gun Drills Three- & Four-Flute Drills Step Drills Step Drill Reamers Step Core Drills Step Core Drill Reamers Reamers Step Reamers Subland Drills Subland Drill Reamers Subland Core Drills Taps End Mills ISO 9001: 2000 CERTIFIED Guhring, Inc. P.O. Box 643, Brookfield, WI 53008-0643 Shipping Address 1445 Commerce Avenue Brookfield, WI 53045 Tel (262) 784-6730 (800) 776-6170 Fax (262) 784-9096 West Coast Distribution Center 17902 Georgetown Lane Huntington Beach, CA 92647 Tel (714) 841-3582 (800) 877-7202 Fax (714) 841-3592 Guhring Corporation 20 Steckle Place, Unit #14 Kitchener, ON N2E 2C3 Tel (519) 748-9664 (800) 463-5555 Fax (519) 748-2954 © Guhring, Inc. 2011 FORM 001 035