Rock Bits catalog for the Oil, Gas, Mining and Construction Industries

Transcription

Rock Bits catalog for the Oil, Gas, Mining and Construction Industries
GT ENGINEERING, INC.
®
ROCK BITS
Digital Catalog
GT® History
For decades, the Gault family has been providing quality rock bits to the drilling industry. What began as a
small fabricating shop in Allen, OK is now a state of
the art manufacturing facility in Shawnee, Oklahoma.
Our attention to detail and hands-on philosophy have
been demonstrated throughout this long history. By
working closely with drillers, we developed our first jet
bit in 1946 and patented it in 1950. This patent,
(#2,524,428), was for the jetted rock bit that revolutionized the hydraulics at the bottom of the hole. Today
this relationship is still evident when we are able to
produce new and improved cutting structures for specific fields in a matter of weeks.
We regularly expand our product line to meet more
and more drilling challenges. Our in-house carbide
plant allows us to produce high quality, specialty carbides for numerous applications. We are dedicated to
improving manufacturing processes but we never
shortchange our quality. Every bit we make is to the
highest standards in materials, metallurgical processes
and workmanship. This dedication ensures the consistency that drillers rely on day after day.
GT® Advantages
ELASTOMER SEAL RING Our seals are individually molded out of proprietary rubber. These O-rings are 100% inspected for size, shape and hardness
before they are put into the rock bit.
SILVER PLATED BECU BUSHING AND THRUST WASHER Every
bushing is made from the highest grade of beryllium copper alloy, heat treated
to exact specifications and machined to the closest tolerances to guarantee
long life in each bit segment.
SPECIALLY FORMULATED GREASE Our grease is a blend of grease
that is degassed to prevent pressure build up in the high heat conditions that
occur in the bit.
PRESSURE COMPENSATOR The diaphragm in the grease reservoir transfers pressure from the drilling fluid to the grease. This provides a steady supply of lubrication to the bearing surfaces.
HARDMETAL ON THE SHIRTTAIL A generous covering of the shirttail
with hardmetal is applied to every journal.
BRP PROTECTION The weldment holding the Ball Retaining Pin is protected
by tungsten carbide buttons. This added protection provides an assurance that
the balls will remain in the cone and the cone will remain on the bit.
STAINLESS STEEL NOZZLE RETAINING RINGS Every bit shipped by
GT has stainless steel nozzle retaining rings. These have proven to be stronger than the normal carbon steel
retaining rings used by other manufacturers.
CENTER HOLES Additional circulation can be obtained at the bottom of the hole by putting a hole in the
middle of the bit. This is standard on all of our sealed bearing air circulation bits.
GT® Bits are Made in the USA and Shipped World Wide
(800)752-0812 (USA) • (405)395-0500
[email protected]
www.gtengineering.com
GT® Engineering, Inc.
7 American Way
Shawnee, OK 74802
Bit photographs in this catalog are shown in grayscale for optimal clarity and detail.
© GT® Engineering, Inc.
2
GT is a registered trademark of GT® Engineering, Inc.
GT® ENGINEERING, INC.
ROCK BITS
Digital Catalog
CATALOG INDEX
IADC
GT® BIT
PAGE
IADC
GT® BIT
PAGE
IADC
GT® BIT
PAGE
4-1-7
04X
4
5-2-7
25X
12
5-4-7
38Y
20
4-1-7
09X
5
5-2-7
25Y
13
6-1-7
40A
21
4-2-7
12X
6
5-2-7
32X
14
6-1-7
42X
22
4-2-7
15X
7
5-3-7
30A
15
6-1-7
43X
23
4-2-7
18X
8
5-3-7
31A
16
6-2-7
44X
24
5-1-7
20X
9
5-3-7
33Y
17
6-2-7
44Y
25
5-1-7
22X
10
5-3-7
35X
18
6-3-7
45Y
26
5-1-7
24X
11
5-3-7
35Y
19
6-3-7
55Y
27
Mill Tooth Bits are made to order in the following sizes:
3-3/4", 3-7/8", 4-1/8", 4-1/4", 4-1/2", 4-5/8", 4-3/4", 5 1/8", 5-1/4", 5-1/2", 6-1/8", 6-1/4"
CROSS REFERENCE
IADC
GT
HUGHES
SMITH
REED
SECURITY
4-1-7
GT 04X
GX03
GFS04
TD41
XS03
4-1-7
GT 09X
GX11
GFS05
TD42H
XS09
4-2-7
GT12X
GX-09
F1
TD43
XS09
4-2-7
GT 15X
---
GFS10B
TD43A
XS13
4-2-7
GT 18X
GX18
FH18
TD43H
XS17
5-1-7
GT 20X
---
---
HP51X
XS23
5-1-7
GT 22X
GX22
FH22
TD51X
XS22
5-1-7
GT 24X
GX23
FH23
HP51
XS23
5-2-7
GT 25X
GX25
FH26
HP52X
XS24
5-2-7
GT 25Y
GT20C
FH26
TD52H
XS25
5-2-7
GT 27Y
GX28C
FH27
HP52
XS27
5-2-7
GT 32X
GX30
FH30
R28AM
XS31
5-3-7
GT 30A
XL30A
---
HP51A
---
5-3-7
GT 31A
XL30A
F27A
HP53A
---
5-3-7
GT 33Y
GX30C
FH32
HP53
XS33
5-3-7
GT 35X
GX35
FH35
TD53A
XS33
5-4-7
GT 35Y
GX38C
F37Y
TD53H
XS35
5-4-7
GT 38Y
GX38C
F37Y
TD54
XS37
5-4-7
GT 39Y
GX38C
F37Y
TD54
XS39
6-1-7
GT 40A
XL40A
F47A
TD61A
---
6-1-7
GT 42X
GX44
F47
TD61
XS42
6-1-7
GT 43X
GX44
F47
TD61
XS42
6-2-7
GT 44X
GX44
F47
TD62
XS46
6-2-7
GT 44Y
GX44C
F43Y
TD62
XS47
6-2-7
GT 45Y
GX45C
F47Y
TD63
XS51
6-3-7
GT 55Y
---
F57Y
TD63
XS52
3
GT® ENGINEERING, INC.
GT
ROCK BITS
®
04X
IADC 4-1-7
Application Range 4-1-7 thru 4-2-7
12 1/4” (311mm) Shown
ASSY # 3540
PRODUCT APPLICATION
Effective in low compressive strength, soft
sedimentary formations
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 9
Inner Row Inserts: 42 - 3/4” & 7/8” Chisel
Heel Row Inserts: 39 - 7/8” Chisel
Bit Connection: 6 5/8” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
CROSS REFERENCE
Hughes: GX-03
Smith: GFS04
Reed: TD41
Security: XS03
AVAILABILITY
INCHES
METRIC
6 1/4
159
7 7/8
200
8 1/2
216
8 3/4
222.3
8 7/8
225
11
279.4
12 1/4
311.2
4
Digital Catalog
GT® ENGINEERING, INC.
GT
®
09X
ROCK BITS
IADC 4-1-7
Application Range 4-1-7 thru 4-3-7
8 3/4” (222mm) Shown
ASSY # 3410
PRODUCT APPLICATION
This bit has a very aggressive offset for an outstanding
penetration rate in very soft and poorly consolidated
formations. The small dome inserts keep the bit in
gage without slowing it down.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 12
Inner Row Inserts: 50 - 9/16” Chisel
Heel Row Inserts: 60 - 9/16” WCC & 1/4” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Uses same nozzles as 7 7/8”
AVAILABLE OPTIONS
Shirttail Protection
AVAILABILITY
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 5000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
CROSS REFERENCE
Hughes: GT09
Smith: F1
Reed: HP43
Security: XS09, XS10
5
INCHES
METRIC
6
152
6 1/8
156
8 3/4
222
Digital Catalog
GT® ENGINEERING, INC.
GT
®
12X
ROCK BITS
IADC 4-2-7
Application Range 4-2-7 thru 4-4-7
12 1/4” (311mm) Shown
ASSY # 3900
PRODUCT APPLICATION
Effective in low compressive strength, unconsolidated
sands, shales, and soft sedimentary formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 12
Inner Row Inserts: 64 - 3/4” & 7/8” Chisel
Heel Row Inserts: 41 - 3/4” Chisel
Bit Connection: 6 5/8” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
AVAILABILITY
CROSS REFERENCE
Hughes: GX09
Smith: F1
Reed: TD43
Security: XS09
6
INCHES
METRIC
6 3/4
171
10 5/8
270
12 1/4
311
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
15X
Digital Catalog
IADC 4-2-7
Application Range 4-2-7 thru 4-3-7
7 7/8” (200mm) Shown
ASSY # 2710
PRODUCT APPLICATION
Effective in low compressive strength,
soft sedimentary formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 10
Inner Row Inserts: 47 - 9/16” Chisel
Heel Row Inserts: 33 - 1/2” WCC
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
AVAILABILITY
CROSS REFERENCE
Hughes: GT09
Smith: F1
Reed: TD43
Security: XS10
INCHES
METRIC
7 7/8
200
This cutting structure has long, sharp
chisel inserts on the inner rows and
wedge-crested chisels on the gage row
to rapidly cut through soft formations.
7
GT® ENGINEERING, INC.
GT
®
18X
ROCK BITS
Digital Catalog
IADC 4-2-7
Application Range 4-2-7 thru 5-1-7
7 7/8” (200mm) Shown
ASSY # 2750
PRODUCT APPLICATION
Effective in low compressive strength, soft
sedimentary formations
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 10
Inner Row Inserts: 47 - 9/16” Chisel
Heel Row Inserts: 33 - 1/2” WCC
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
AVAILABILITY
CROSS REFERENCE
Hughes: GT09
Smith: F1
Reed: TD43
Security: XS10
8
INCHES
METRIC
4 3/4
121
5 1/4
133
5 1/2
140
5 5/8
143
6 3/4
171
7 7/8
200
10 5/8
270
12 1/4
311
Slightly denser carbide drill pattern
than the GT15X with the same offset for fast drilling through slightly
harder formations.
GT® ENGINEERING, INC.
GT
®
20X
ROCK BITS
IADC 5-1-7
Application Range 5-1-7 thru 5-2-7
7 7/8” (200mm) Shown
ASSY # 2850
PRODUCT APPLICATION
Soft, low-compressive strength formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 10
Inner Row Inserts: 55 - 9/16” & 1/2” Chisel
Heel Row Inserts: 37 - 9/16” Chisel
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
AVAILABILITY
CROSS REFERENCE
Hughes: GT20
Smith: F2
Reed: TD51X
Security: XS20
9
INCHES
METRIC
6 1/8
156
6 1/2
165
7 7/8
200
8 1/2
216
8 3/4
222
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
22X
IADC 5-1-7
Application Range 5-1-7 thru 5-2-7
8 3/4” (200mm) Shown
ASSY # 3740
PRODUCT APPLICATION
Most effective in soft, low-compressive strength
formations that respond to sharp, chisel inserts.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 10
Inner Row Inserts: 57 - 9/16” & 5/8” Chisel
Heel Row Inserts: 44 - 9/16” Chisel
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
AVAILABILITY
Weight on Bit Range: 2000 - 5000 lb/in of bit diameter
Normal Rotary Speed Range: 60 - 160 RPM
INCHES METRIC
CROSS REFERENCE
Hughes: GX22
Smith: FH22
Reed: TD51X
Security: XS22
AVAILABILITY
INCHES
METRIC
3 7/8
98
6 1/4
159
4 1/2
114
6 3/4
171
4 3/4
121
7 7/8
200
4 7/8
124
8 3/4
222
5 1/8
130
9 7/8
251
5 1/2
140
10 5/8
270
5 5/8
143
12 1/4
311
5 7/8
149
10
Digital Catalog
GT® ENGINEERING, INC.
GT
®
24X
ROCK BITS
IADC 5-1-7
Application Range 5-1-7 thru 5-2-7
8 3/4” (222mm) Shown
ASSY # 3760
PRODUCT APPLICATION
For use in soft, low-compressive strength formations
that respond to the gouging, cutting action of more
rounded inserts.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 10
Inner Row Inserts: 57 - 9/16” & 5/8” SC Chisel
Heel Row Inserts: 44 - 9/16” WC Chisel
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABLE OPTIONS
Shirttail Protection
AVAILABILITY
OPERATING PARAMETERS
Weight on Bit Range: 2000 - 5000 lb/in of bit diameter
Normal Rotary Speed Range: 60 - 160 RPM
INCHES
METRIC
3 7/8
98
4 3/4
121
5 1/4
133
6 1/8
156
6 1/4
159
8 3/4
222
CROSS REFERENCE
Hughes: GX23
Smith: FH23
Reed: HP51
Security: XS23
11
Digital Catalog
GT® ENGINEERING, INC.
GT
®
25X
ROCK BITS
Digital Catalog
IADC 5-2-7
Application Range 5-1-7 thru 5-2-7
7 7/8” (200mm) Shown
ASSY # 3510
PRODUCT APPLICATION
Most effective in softer formations. Addition of
dome shaped inserts in the gage row prevents
undersize holes in abrasive formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 59 - 9/16” Chisel
Heel Row Inserts: 40 - 7/16” WCC & 3/8” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 2000 - 5000 lb/in of bit diameter
Normal Rotary Speed Range: 60 - 160 RPM
AVAILABILITY
INCHES
METRIC
5 1/8
130
7 7/8
200
11
279
CROSS REFERENCE
Hughes: GX25
Smith: FH26
Reed: HP52X
Security: XS24
12
The GT25X has sturdy chisel
inserts on the inner rows and a
combination of wedge-crested
chisels and domes on the gage
row to keep the hole in gage
through more abrasive formations.
GT® ENGINEERING, INC.
GT
ROCK BITS
®
25Y
Digital Catalog
IADC 5-2-7
Application Range 5-2-7 thru 5-3-7
7 7/8” (200mm) Shown
ASSY # 2610
PRODUCT APPLICATION
Most effective in soft to medium strength
sedimentary formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 64 - 9/16” Conical
Heel Row Inserts: 41 - 7/16” WCC & 3/8” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 2000 - 5500 lb/in of bit diameter
Normal Rotary Speed Range: 60 - 140 RPM
CROSS REFERENCE
Hughes: GT20C
Smith: F27
Reed: TD521
Security: XS27
AVAILABILITY
INCHES
METRIC
7 7/8
200
11
279
13
Identical to the GT25X except it
has substituted long, conical
inserts in the inner rows. This is
best used in formations that
respond to conical inserts.
GT® ENGINEERING, INC.
GT
®
32X
ROCK BITS
IADC 5-2-7
Application Range 5-2-7 thru 5-3-7
8 3/4” (222mm) Shown
ASSY # 3220
PRODUCT APPLICATION
This bit is a very aggressive, medium bit; fast and
tough. It has double gage packs to give it full heelrow protection to maintain gage.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 12
Inner Row Inserts: 90 - 9/16” Chisel
Heel Row Inserts: 47 - 7/16” WCC
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABILITY
INCHES
METRIC
4 1/2
114
5 7/8
149
6 1/8
156
6 1/2
165
8 1/2
216
8 3/4
222
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 2000 - 5500 lb/in of bit diameter
Normal Rotary Speed Range: 60 - 140 RPM
CROSS REFERENCE
Hughes: GX30
Smith: FH30
Reed: R28AM
Security: XS31
14
Digital Catalog
GT® ENGINEERING, INC.
GT
®
30A
ROCK BITS
IADC 5-3-7
Application Range 5-2-7 thru 5-4-7
7 7/8” (200mm) Shown
ASSY # 3110
PRODUCT APPLICATION
Extra tough carbide buttons for air drilling. Minimal
offset for extended bearing life. It also has
standard nozzle sockets in case drilling needs
to be done with mud.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 12
Inner Row Inserts: 71 - 3/8”, 7/16” & 1/2” Conical
Heel Row Inserts: 48 - 7/16” WC Chisel
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Skip drilling provides smooth, fast drilling and
eliminates tracking
AVAILABLE OPTIONS
Shirttail Protection
AVAILABILITY
INCHES
METRIC
7 7/8
200
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
CROSS REFERENCE
Hughes: XL30A
Smith: F27A
Reed: HP51A
Security: - - -
15
Digital Catalog
GT® ENGINEERING, INC.
GT
®
31A
ROCK BITS
IADC 5-3-7
Application Range 5-3-7 thru 5-4-7
7 7/8” (200mm) Shown
ASSY # 3870
PRODUCT APPLICATION
Extra tough carbide buttons for air drilling.
Minimal offset for extended bearing life.
It also has standard nozzle sockets in case
drilling needs to be done with mud.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 12
Inner Row Inserts: 73 - 7/16” & 1/2” Chisel
Heel Row Inserts: 47 - 1/2” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Skip drilling provides smooth, fast drilling and
eliminates tracking
AVAILABLE OPTIONS
Shirttail Protection
AVAILABILITY
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
INCHES
METRIC
7 7/8
200
CROSS REFERENCE
Hughes: XL30A
Smith: F27A
Reed: HP53A
Security: - - -
16
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
33Y
IADC 5-3-7
Application Range 5-3-7 thru 5-4-7
7 7/8” (200mm) Shown
ASSY # 3830
PRODUCT APPLICATION
Most effective in medium hard formations that have
frequent stringers of harder material. It combines the
toughness of harder formations with the exposure of
softer ones.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 73 - 9/16” Conical
Heel Row Inserts: 41 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABILITY
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3000 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
INCHES
METRIC
5 1/8
130
5 1/4
133
7 7/8
200
CROSS REFERENCE
Hughes: GX30C
Smith: FH32
Reed: HP53
Security: XS33
17
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
35X
IADC 5-3-7
Application Range 5-3-7 thru 5-4-7
8 3/4” (222mm) Shown
ASSY # 3790
PRODUCT APPLICATION
Most effective in soft to medium formations with
harder streaks.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 66 - 9/16” & 5/8” Chisel
Heel Row Inserts: 46 - 1/2” WCC
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Uses same nozzles as 7 7/8”
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3000 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
CROSS REFERENCE
Hughes: GX35
Smith: FH35
Reed: TD53
Security: XS33
This bit combines the aggressive skew with durable, chisel
inserts that will provide a high
rate of penetration and not be
damaged by any hard stringers
found in the well bore.
AVAILABILITY
AVAILABILITY
INCHES
METRIC
INCHES
METRIC
3 7/8
98
5 7/8
149
4 1/2
114
6
152
4 5/8
117
6 1/8
156
4 3/4
121
6 1/4
159
4 7/8
124
6 1/2
165
5
127
6 3/4
171
5 1/8
130
7 7/8
200
5 1/4
133
8 3/4
222
5 1/2
140
8 1/2
216
5 5/8
143
9 7/8
251
5 3/4
146
11
279
12 1/4
311
18
Digital Catalog
GT® ENGINEERING, INC.
GT
®
35Y
ROCK BITS
Digital Catalog
IADC 5-4-7
Application Range 5-4-7 thru 6-1-7
7 7/8” (200mm) Shown
ASSY # 2551
PRODUCT APPLICATION
Most effective in medium-strength formations
with streaks of harder materials.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 69 - 9/16” Conical
Heel Row Inserts: 40 - 7/16” WCC
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3000 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
CROSS REFERENCE
Hughes: GT30C
Smith: F35
Reed: HP54
Security: XS30
AVAILABILITY
INCHES
METRIC
4 5/8
118
6 1/8
156
7 7/8
200
8 7/8
225
11
279
12 1/4
311
19
Identical to the GT35X but with conical
inserts. This bit has wedge-crested,
gage row inserts just like the GT35X.
GT® ENGINEERING, INC.
GT
®
38Y
ROCK BITS
Digital Catalog
IADC 5-4-7
Application Range 5-4-7 thru 6-1-7
7 7/8” (200mm) Shown
ASSY # 2630
PRODUCT APPLICATION
Most effective in medium-strength formations with
streaks of harder materials.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 11
Inner Row Inserts: 69 - 9/16” Conical
Heel Row Inserts: 40 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3000 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
CROSS REFERENCE
Hughes: GT30C
Smith: F37
Reed: TD54
Security: XS37
AVAILABILITY
INCHES
METRIC
4 7/8
124
5 1/2
140
5 5/8
143
6 1/4
159
6 3/4
171
8 3/4
222
20
Conical, inner-row inserts and domed,
gage row inserts, situated on an aggressive skew, make this an ideal bit for
medium-soft formations with harder
streaks.
GT® ENGINEERING, INC.
GT
ROCK BITS
®
40A
IADC 6-1-7
Application Range 6-1-7 thru 6-2-7
8 3/4” (222mm) Shown
ASSY # 3320
PRODUCT APPLICATION
Small, tightly packed inserts provide a rapid penetration
rate when using air drilling. Double rows of gage packs
provide full, heel-row coverage.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 13
Inner Row Inserts: 97 - 1/2” Conical
Heel Row Inserts: 58 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Dense Cutting Structure
Minimal Offset
Uses same nozzles as 7-7/8”
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
CROSS REFERENCE
Hughes: XL40A
Smith: F47A
Reed: TD61A
AVAILABILITY
INCHES
METRIC
6 1/8
156
6 1/4
159
6 1/2
165
6 3/4
171
8 3/4
222
The GT40A is an extremely durable and
aggressive air drilling, sealed-bearing bit.
This bit has a very dense insert pattern of
conical inserts on the inner rows and
domed inserts on the gage rows.
21
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
42X
IADC 6-1-7
Application Range 5-4-7 thru 6-1-7
8 3/4” (222mm) Shown
ASSY # 3840
PRODUCT APPLICATION
Best used in medium formations with hard streaks.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 33º
Seal Type: O-ring
Number of Rows: 15
Inner Row Inserts: 107 - 3/8” & 7/16” Dome, 1/2” Chisel
Heel Row Inserts: 50 - 7/16” Contoured Wedge Chisel
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7-7/8”
AVAILABILITY
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3000 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 50 - 110 RPM
CROSS REFERENCE
Hughes: GX44
Smith: F47
Reed: TD61
Security: XS42
Less skew than that found on the softer bits.
The GT42X has chisel inserts throughout
the cutting structure. The inserts on the gage
row are wedge-crested chisels that enable it
to cut effectively in medium formations.
INCHES
METRIC
3 3/4
95
4 5/8
118
4 7/8
124
5
127
5 1/8
130
5 1/4
133
5 1/2
140
6 1/8
156
6 1/4
159
6 1/2
165
8 1/2
216
8 3/4
222
22
Digital Catalog
GT® ENGINEERING, INC.
GT
ROCK BITS
®
43X
IADC 6-1-7
Application Range 6-1-7 thru 6-2-7
8 3/4” (222mm) Shown
ASSY # 3860
PRODUCT APPLICATION
The GT43X is best used in medium formations with
hard streaks.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 15
Inner Row Inserts: 108 - 3/8” & 7/16” Dome, 1/2” Chisel
Heel Row Inserts: 52 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABILITY
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
CROSS REFERENCE
Hughes: GX44
Smith: F47
Reed: TD61
Security: XS42
INCHES
METRIC
3 3/4
95
4 5/8
118
5
127
5 1/4
133
6 1/8
156
6 1/4
159
8 1/2
216
8 3/4
222
23
Digital Catalog
GT® ENGINEERING, INC.
GT
®
44X
ROCK BITS
IADC 6-2-7
Application Range 6-1-7 thru 6-2-7
8 3/4” (222mm) Shown
ASSY # 3810
PRODUCT APPLICATION
An aggressive bit designed to go through formations
with high compressive strength with some harder
stringers.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 15
Inner Row Inserts: 108 - 3/8” & 7/16” Dome, 1/2” Chisel
Heel Row Inserts: 52 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABILITY
AVAILABLE OPTIONS
Shirttail Protection
INCHES
METRIC
3 3/4
95
8 1/2
216
8 3/4
222
9 7/8
251
11
279
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
CROSS REFERENCE
Hughes: GX44
Smith: F47
Reed: TD62
Security: XS46
24
Digital Catalog
GT® ENGINEERING, INC.
GT
®
44Y
ROCK BITS
IADC 6-2-7
Application Range 6-2-7 thru 6-3-7
8 3/4” (222mm) Shown
ASSY # 3820
PRODUCT APPLICATION
Effective in formations with high compressive strength with
some harder stringers.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 15
Inner Row Inserts: 108 - 3/8” & 7/16” Dome, 1/2” Conical
Heel Row Inserts: 52 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
Uses same nozzles as 7 7/8”
AVAILABLE OPTIONS
Shirttail Protection
AVAILABILITY
INCHES
METRIC
4 5/8
118
4 3/4
121
4 7/8
124
5
127
5 1/8
130
6
152
6 1/8
156
6 1/2
165
7 7/8
200
8 3/4
222
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 80 RPM
CROSS REFERENCE
Hughes: GX44C
Smith: F43Y
Reed: TD62
Security: XS47
The GT44Y has ovoid inserts on the gage row. It is
most effective in harder formations. The GT44Y has
proven itself with a rate of penetration superior to
comparable bits.
25
Digital Catalog
GT® ENGINEERING, INC.
GT
®
45Y
ROCK BITS
Digital Catalog
IADC 6-2-7
Application Range 6-1-7 thru 6-3-7
7 7/8” (200mm) Shown
ASSY # 2410
PRODUCT APPLICATION
Most effective in medium to medium hard formations.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 13
Inner Row Inserts: 80 - 1/2” Conical
Heel Row Inserts: 48 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 3500 - 6000 lb/in of bit diameter
Normal Rotary Speed Range: 40 - 70 RPM
AVAILABILITY
INCHES
METRIC
3 3/4
95
5 1/8
130
6 3/4
171
8 3/4
222
CROSS REFERENCE
Hughes: GX45C
Smith: F47Y
Reed: TD63
Security: XS51
26
Slightly more dense than the GT44Y for
slightly harder and more abrasive formations.
It too has ovoid inserts on the inner rows
and domes on the gage row.
GT® ENGINEERING, INC.
GT
ROCK BITS
®
55Y
IADC 6-3-7
Application Range 6-2-7 thru 6-4-7
7 7/8” (200mm) Shown
ASSY # 2800
PRODUCT APPLICATION
Use in medium hard formations with abrasive qualities.
DESIGN SPECIFICATIONS
Bearing Type: Sealed Friction
Journal Angle: 36º
Seal Type: O-ring
Number of Rows: 14
Inner Row Inserts: 79 - 1/2” Conical
Heel Row Inserts: 45 - 7/16” Dome
Bit Connection: 4 1/2” API Reg.
SPECIAL FEATURES
Silver Plated BeCu Bushing
Silver Plated Thrust Washer
Aggressive Cutting Structure
Moderate Offset
AVAILABLE OPTIONS
Shirttail Protection
OPERATING PARAMETERS
Weight on Bit Range: 1500 - 4000 lb/in of bit diameter
Normal Rotary Speed Range: 80 - 180 RPM
CROSS REFERENCE
Smith: F57Y
Reed: TD63
Security: XS52
AVAILABILITY
INCHES
METRIC
3 3/4
95
4 5/8
118
5
127
5 1/8
130
5 1/4
133
6
152
6 1/8
156
6 1/4
159
6 3/4
171
7 7/8
200
27
Digital Catalog
GT® ENGINEERING, INC.
ROCK BITS
Digital Catalog
GT® Engineering, Inc.
7 American Way
Shawnee, OK 74802
(800)752-0812 (USA) • (405)395-0500
[email protected]
www.gtengineering.com
This forging means you
have a genuine GT® Bit.
It means reliablity,
performability,
& superior ROP.
GT04X 12 1/4”
28
Lit #64569GT_Engineering_Rock_Bits01-14-2015