Cat
TriconeDrill
Bits
Catalog®

PRODUCT SUPPORT & LOGISTICS DIVISIONCat Tricone Drill Bits
Cat® tricone drill bits are designed for the toughest and most severe rotary blastholeapplications, yet suitable for all your drilling needs. Our comprehensive tricone bit
offering includes a wide range of bit diameters with various carbide shapes/cutting
face arrangements to maximize rate of penetration. Caterpillar’s extensive experience
with heat treatment technology and advanced air-cooled bearing design yields longer
life, resulting in lower overall drilling costs. Please contact your Cat dealer to discuss
the details of your unique application and how Caterpillar can partner with you toachieve the lowest possible drilling cost.

Rock Formation to Tricone Bit Conversions
Rock Formation
Limestone (soft)
Sandstone

Limestone (hard) Quartzite (soft)Ironstone

GraniteDolorite

BasaltQuartzite (hard)

Rock Strength (MPa)
Inch mm 10

125

185

200

250

6 3/4

171

S-2

M-1

M-3

7 7/8

200

S-2

M-1

M-3

9

229

9 7/8

251

10 5/8

271

S-1

S-3

345

M-1

H-1

M-3

H-1

M-3

S-3

12 1/4311

13 3/4

350

M-1

480

H-1

M-2

M-1

435

H-1

M-3

Cat Tricone Drill Bits
Bit Diameter
1

mm

6 3/4

171

546-3432

550-1610

7 7/8

200

589-1881

589-1882

9

229

9 7/8

251

10 5/8271

12 1/4311

601-1496

13 3/4350

604-8209

593-8498

2

Medium

in

Note:

2

Soft
3

1

550-1614

2

Hard
3

kg

lbs

550-161221

46589-18833781550-16184396

601-1405

601-140666

145

596-7059

596-7060

72

160

601-1498

601-1499

99

220

145

319

550-1616
601-1404

596-7057

1

WeightCaterpillar continues to develop drill bit models for availability off-the-shelf.
If your application does not have a Cat Part Number, it can be developed upon request. Please contact your local Cat dealer.
All Parts listed above come with API threads, unless noted. BECO threads available upon request.

Features & Benefits
Cat Tricone Bits are built to provide what our customers expect:• Cat Performance• Cat Product Support• Cat Parts Distribution• Reduced Total Drilling Cost (TDC)*Air Cooled Bearings - Our anti-friction design provides for long life in toughapplications by reducing the heat generation of tricone drill bits.
•
Cone Protection - Utilize special technology to prevent severe wear on 		the cone by drilling cuttings and unbroken rock ridges; therefore,
greatly improving the working life of the bit. The gage row design has been
proven to improve resistance to diameter shrinkage.
Cutting Structure – Optimized for high wear resistance and toughness of
the inserts, enable aggressive cutting to increase rate of penetration.
Cone Carbide Layout - Designed to create an optimal rock fragmentation toprovide the highest rate of penetration for your particular application.
Shirttail Protection - Several advanced techniques and materials are
considered, the best combination is selected by our engineers to provide
excellent protection in this region to further extend the bit’s service life.
Cuttings Removal - Special design increases space for cutting removal 		with enlarged “junk slot”, which facilitates removal of drilling cuttings.

3

6-3/4” (171 mm) Soft Formations Cat Tricone Drill Bits 546-3432
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

4-3-2

Cutter shapes

Conical, Chisel and RoundPin connection thread size

3 1/2 API REG* with back flow valve

Approximate Weight46 lbs (21kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

587-8482

Included

9/16

14587-8484

Installed

5/8

16587-8485

IncludedOperating Parameters
Weight on bit (WOB)

6,750 to 27,000 lbs (30-120 kN)

Rotary speed

90 to 120 RPM

Air back pressure on bit

29-58 psi (0.2 - 0.4 MPa)

Number of
ROWS: 4-4-3
Number of
CUTTERS: 93

6-3/4” (171 mm) Medium Formations Cat Tricone Drill Bits 550-1610
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

5-4-2

Cutter shapes

Conical and RoundPin connection thread size

3 1/2 API REG* with back flow valve

Approximate Weight46 lbs (21kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

587-8482

Included

9/16

14587-8484

Installed

5/8

16587-8485

IncludedOperating Parameters
Weight on bit (WOB)

13,500 to 33,750 lbs (60-150 kN)

Rotary speed

80 to 110 RPM

Air back pressure on bit

29-58 psi (0.2-0.4 MPa)4

Number of
ROWS: 4-4-3
Number of
CUTTERS: 93

6-3/4” (171 mm) Medium Formations Cat Tricone Drill Bits 550-1612
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

6-4-2

Cutter shapes

Conical, Ovoid and RoundPin connection thread size

3 1/2 API REG* with back flow valve

Approximate Weight46 lbs (21kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

587-8482

Included

9/16

14587-8484

Installed

5/8

16587-8485

IncludedOperating Parameters
Weight on bit (WOB)

20,250 to 40,500 lbs (90-180 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit

29-58 psi (0.2-0.4 MPa)

Number of
ROWS: 4-4-4
Number of
CUTTERS: 105

7-7/8” (200 mm) Soft Formations Cat Tricone Drill Bits 589-1881
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

4-3-2

Cutter shapes

Conical and Wedge Chisel

Pin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

75 lbs (34kg)*Also available in BECO pin thread

Replacement Nozzle Options

5

in.

mm.

Part Number

Notes

1/2

12

601-6763

Included–

13

601-6764

–

9/16

14

601-6775

Installed

5/8

16

601-6769

Included

11/16

18

601-6770

–

3/4

20

601-6771–

Number of
ROWS: 4-4-3
Number of
CUTTERS: 88
Operating Parameters
Weight on bit (WOB)

14,000 to 32,000 lbs (62-142 kN)

Rotary speed

60 to 125 RPM

Air back pressure on bit

29-58 psi (0.2-0.4 MPa)

7-7/8” (200 mm) Medium Formations Cat Tricone Drill Bits 589-1882
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

5-4-2

Cutter shapes

ConicalPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

75 lbs (34kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

601-6763

Included–

13

601-6764

–

9/16

14

601-6775

Installed

5/8

16

601-6769

Included

11/16

18

601-6770

–

3/4

20

601-6771–

Number of
ROWS: 4-4-3
Number of
CUTTERS: 96
Operating Parameters
Weight on bit (WOB)

20,000 to 50,000 lbs (88-222 kN)

Rotary speed

80 to 110 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

7-7/8” (200 mm) Medium Formations Cat Tricone Drill Bits 589-1883
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

6-4-2

Cutter shapes

ConicalPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

75 lbs (34kg)*Also available in BECO pin thread

Replacement Nozzle Options

6

in.

mm.

Part Number

Notes

1/2

12

601-6763

Included–

13

601-6764

–

9/16

14

601-6775

Installed

5/8

16

601-6769

Included

11/16

18

601-6770

–

3/4

20

601-6771–

Number of
ROWS: 4-4-4
Number of
CUTTERS: 116
Operating Parameters
Weight on bit (WOB)

25,000 to 53,000 lbs (111-235 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)9” (229 mm) Soft Formations Cat Tricone Drill Bits 593-8498
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

4-1-2

Cutter shapes

Conical, Wedge and RoundPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

110 lbs (50 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

587-8488––13

587-8489

–

9/16

14

587-8486

Included

5/8

16587-8487

Installed

11/16

18

587-8490

Included

3/4

20

587-8491

–

7/8

22

587-8492–

Number of
ROWS: 4-1-2
Number of
CUTTERS: 88
Operating Parameters
Weight on bit (WOB)

9,000 to 40,000 lbs (40-180 kN)

Rotary speed

90 to 120 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)9” (229 mm) Soft Formations Cat Tricone Drill Bits 550-1614
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

4-1-2

Cutter shapes

Conical, Wedge and RoundPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

110 lbs (50 kg)*Also available in BECO pin thread

Replacement Nozzle Options

7

in.

mm.

Part Number

Notes

1/2

12

587-8488––13

587-8489

–

9/16

14

587-8486

Included

5/8

16587-8487

Installed

11/16

18

587-8490

Included

3/4

20

587-8491

–

7/8

22

587-8492–

Number of
ROWS: 3-3-4
Number of
CUTTERS: 89
Operating Parameters
Weight on bit (WOB)

9,000 to 40,000 lbs (40-180 kN)

Rotary speed

90 to 120 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)9” (229 mm) Medium Formations Cat Tricone Drill Bits 550-1616
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

6-3-2

Cutter shapes

Conical, Ovoid, and RoundPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

110 lbs (50 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

1/2

12

587-8488––13

587-8489

–

9/16

14

587-8486

Included

5/8

16587-8487

Installed

11/16

18

587-8490

Included

3/4

20

587-8491

–

7/8

22

587-8492–

Number of
ROWS: 4-4-4
Number of
CUTTERS: 146
Operating Parameters
Weight on bit (WOB)

27,000 to 54,000 lbs (120-240 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)9” (229 mm) Hard Formations Cat Tricone Drill Bits 550-1618
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

7-2-2

Cutter shapes

Conical, Ovoid, and RoundPin connection thread size

4 1/2 API REG* with back flow valve

Approximate Weight

110 lbs (50 kg)*Also available in BECO pin thread

Replacement Nozzle Options

8

Number of
ROWS: 5-5-4

in.

mm.

Part Number

Notes

1/2

12

587-8488––13

587-8489

–

9/16

14

587-8486

Included

5/8

16587-8487

Installed

11/16

18

587-8490

Included

Weight on bit (WOB)

36,000 to 63,000 lbs (160-280 kN)

3/4

20

587-8491–

Rotary speed

60 to 90 RPM

7/8

22

587-8492–

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

Number of
CUTTERS: 166
Operating Parameters

9-7/8” (251 mm) Medium Formations Cat Tricone Drill Bits 601-1404
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

5-4-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

145 lbs (66 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

9/16

14

587-8493

Included

5/8

16587-8494

Installed

11/16

18

587-8495

–

11/16

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 4-4-4
Number of
CUTTERS: 121
Operating Parameters
Weight on bit (WOB)

20,000 to 50,000 lbs (88.9-222.4 kN)

Rotary speed

60 to 120 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

9-7/8” (251 mm) Medium Formations Cat Tricone Drill Bits 601-1405
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

6-4-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

145 lbs (66 kg)*Also available in BECO pin thread

Replacement Nozzle Options

9

in.

mm.

Part Number

Notes

9/16

14

587-8493

Included

5/8

16587-8494

Installed

11/16

18

587-8495

–

11/16

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 5-4-4
Number of
CUTTERS: 149
Operating Parameters
Weight on bit (WOB)

30,000 to 60,000 lbs (133.4-266.8 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

9-7/8” (251 mm) Hard Formations Cat Tricone Drill Bits 601-1406
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

7-2-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

145 lbs (66 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

9/16

14

587-8493

Included

5/8

16587-8494

Installed

11/16

18

587-8495

–

11/16

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 5-5-4
Number of
CUTTERS: 170
Operating Parameters
Weight on bit (WOB)

40,000 to 90,000 lbs (177.0-400.3 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

10-5/8” (271 mm) Soft Formations Cat Tricone Drill Bits 596-7057
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

5-3-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

158 lbs (72 kg)*Also available in BECO pin thread

Replacement Nozzle Options

10

in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

Included

11/16

18

587-8495

Installed

3/4

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 4-4-4
Number of
CUTTERS: 115
Operating Parameters
Weight on bit (WOB)

21,000 to 53,000 lbs (93-235 kN)

Rotary speed

80 to 120 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

10-5/8” (271 mm) Medium Formations Cat Tricone Drill Bits 596-7059
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

6-4-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

158 lbs (72 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

Included

11/16

18

587-8495

Installed

3/4

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 5-4-4
Number of
CUTTERS: 150
Operating Parameters
Weight on bit (WOB)

30,000 to 70,000 lbs (133-311 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

10-5/8” (271 mm) Hard Formations Cat Tricone Drill Bits 596-7060
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
Specifications
IADC

7-2-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

158 lbs (72 kg)*Also available in BECO pin thread

Replacement Nozzle Options

11

in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

Included

11/16

18

587-8495

Installed

3/4

20.5

587-8496

Included

15/16

23

587-8497–1

25

587-8498–

Number of
ROWS: 5-5-4
Number of
CUTTERS: 185
Operating Parameters
Weight on bit (WOB)

45,000 to 100,000 lbs (200-444 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

12-1/4” (311 mm) Medium Formations Cat Tricone Drill Bits 601-1496 APIBall Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
558-9403 BECO
Specifications
IADC

5-4-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

225 lbs (102 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

–

11/16

18

587-8495

Included

3/4

20.5

587-8496

–

15/16

23

587-8497

Included125

587-8498

Replacement Pin

541-4671

Number of
ROWS: 4-4-4
Number of
CUTTERS: 135
Operating Parameters
Weight on bit (WOB)

30,000 to 70,000 lbs (200-444 kN)

Installed

Rotary speed

60 to 120 RPM

Included

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

12-1/4” (311 mm) Medium Formations Cat Tricone Drill Bits 601-1498 API
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
558-9404 BECO
Specifications
IADC

6-4-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

225 lbs (102 kg)*Also available in BECO pin thread

Replacement Nozzle Options

12

in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

–

11/16

18

587-8495

Included

3/4

20.5

587-8496

–

15/16

23

587-8497

Included125

587-8498

Installed

Number of
ROWS: 5-4-4
Number of
CUTTERS: 160
Operating Parameters
Weight on bit (WOB)

37,000 to 90,000 lbs (164.5-400.3 kN)

Rotary speed

60 to 100 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

12-1/4” (311 mm) Hard Formations Cat Tricone Drill Bits 601-1499 API
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
558-9406 BECO
Specifications
IADC

7-2-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight

225 lbs (102 kg)*Also available in BECO pin thread

Replacement Nozzle Options
in.

mm.

Part Number

Notes

9/16

14

587-8493

–

5/8

16

587-8494

–

11/16

18

587-8495

Included

3/4

20.5

587-8496

–

15/16

23

587-8497

Included125

587-8498

Installed

Number of
ROWS: 5-5-4
Number of
CUTTERS: 182
Operating Parameters
Weight on bit (WOB)

50,000 to 100,000 lbs (222-444 kN)

Rotary speed

60-90 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

13-3/4” (349 mm) Medium Formations Cat Tricone Drill Bits 604-8209 API
Ball Locked and Roller Bearing, Air-cooled | 3 Air jet nozzles
593-5746 BECO
Specifications
IADC

5-3-2

Cutter shapes

ConicalPin connection thread size

6 5/8 API REG* with back flow valve

Approximate Weight*Also available in BECO pin thread

Replacement Nozzle Options

13

in.

mm.

Part Number

Notes

3/4

20

602-0587

–

7/8

22

602-0588

Included

125

602-0589

Installed

1 1/8

28

602-0590

Included

1 1/4

32

602-0591--

Number of
ROWS: 4-4-4
Number of
CUTTERS: 130
Operating Parameters
Weight on bit (WOB)

41,000 to 91,000 lbs (182-405 kN)

Rotary speed

50-120 RPM

Air back pressure on bit 29-58 psi (0.2-0.4 MPa)

The 575-2275 Air Flow Tester is intended for measuring air flow rates up to 3,000 CFM (85 m3/min) and for pressure
up to 500 psi (3450 kPa). It is designed for measuring compressor air flow on drills, but could be used in otherapplications, as well.
This kit includes all components of the tester except for the BECO and API thread adapters, which are available
for individual purchase. The carrying case provided with the kit has storage space for all tester components plus
space for up to 3 thread adapters (with the exception of the 8” BECO).

Item Description
ThreadDiameterA
mm (in)ThicknessB
mm (in)Weight kg–(lbs)

575-2276*

Drill String Thread Adapters
575-2278575-2279575-2280

575-2281575-2282575-2283

8” BECO6” BECO

6-5/8” API

4-1/2” API

3-1/2” API

216 (8.5)

165 (6.5)

2.7 (6.0)

2.1 (4.6)

4-1/2” BECO

152 (6.0)

76 (3.0)
5.1 (11.2)

3-1/2” BECO

102 (4.0)
4.2 (9.3)

2.7 (6.0)

2.0 (4.4)

3.8 (8.4)*The 8” BECO Thread Adapter will not fit in the case that comes with the 575-2275 Air Flow Tester.

The FT3567 Bit Air Pressure Tool enables a quick check of the air pressure at the drill bit nozzles. This tool is
primarily used for:• setting the compressor regulators for pneumatic control systems, and/or• double checking natural pressure drop from receiver tank port, through blow-air-hose/tube, rotary head 		assembly and drill string.

14

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