1FL | 60°-120° | Single & Double End

Solid Carbide Countersink

Tool Features

Carbide, 1FL, Bright

Series 331 Overview

  • Sub-micrograin carbide substrate for wear resistance
  • General purpose countersinking operations
  • Single end and double end

Series Lineup

Performance - Holemaking

Series 110

2 Flute Carbide-Tip Drill

Carbide-Tip, 2FL, 20° Helix, 118° Point Angle, Screw Machine Length, Bright

K1

K2

N2

Performance - Holemaking

Series 115

2 Flute Carbide-Tip Screw Machine Length Drill

Carbide-Tip, 2FL, 20° Helix, 135° Point Angle, Bright

K1

K2

N2

S2

Performance - Holemaking

Series 120

2 Flute Carbide-Tip Jobber Length Drill

Carbide-Tip, 2FL, 20° Helix, 118° Point Angle, Jobber Length, Bright

K1

K2

N2

Performance - Holemaking

Series 125

2 Flute Carbide-Tip Jobber Length Drill

Carbide-Tip, 2FL, 20° Helix, 135° Point Angle, Jobber Length, Bright

K1

K2

N2

S2

Performance - Holemaking

Series 129

2 Flute Carbide-Tip Aircraft Drill

Carbide-Tip, 2FL, 20° Helix, 135° Point Angle, Bright

K1

K2

N2

S2

Performance - Holemaking

Series 150

2 flute carbide-tip drill for hardened steel

Carbide-Tip, 2FL, 0° Helix, 118° Point Angle, Regular Length, Bright

H1

H2

Performance - Holemaking

Series 170

2 Flute 4 Facet Coolant-Through Carbide-Tip Drill

Carbide-Tip, 2FL, 0° Helix, Regular Length, Bright

P2

K1

K2

N2

S2

Performance - Holemaking

Series 171

2 Flute 4-Facet Carbide-Tip Jobber Drill

Carbide-Tip, 2FL, 0° Helix, 125° Point Angle, Jobber Length, Coolant-Through, Bright

P2

K1

K2

N2

S2

Performance - Holemaking

Series 172

2 Flute 4 Facet Carbide-Tip X-Long Drill

Carbide-Tip, 2FL, 0° Helix, 125° Point Angle, X-Long Length, Coolant-Through, Bright

P2

K1

K2

N2

S2

Performance - Holemaking

Series 4210

2 Flute 4-Facet Drill

Carbide, 2FL, 30° Helix, 135° Point Angle, 4-Facet, Bright

N1

N2

Performance - Holemaking

Series 4211

2 Flute 4-Facet Drill

Carbide, 2FL, 30° Helix, 135° Point Angle, 4-Facet, Threaded Shank, Bright

N1

N2

Performance - Holemaking

Series 4205

Single Flute Dagger Drill

Carbide, 1FL, Bright

N1

N2

Performance - Holemaking

Series 4206

Single Flute Dagger Drill

Carbide, 1FL, Threaded Shank, Bright

N1

N2

Performance - Holemaking

Series 4207

4 Flute Dreamer Drill

Carbide, 4FL, 118° Point Angle, Bright

N1

N2

Performance - Holemaking

Series 4208

4 Flute Dreamer Drill

Carbide, 4FL, 118° Point Angle, Threaded Shank, Bright

N1

N2

Performance - Holemaking

Series 4215

3 Flute Piloted Countersink

Carbide, 3FL, Threaded Shank, Piloted, Bright

N1

N2

Performance - Holemaking

Series 4218

Brazed Carbide Rivet Shaver

Carbide-Tip, Threaded Shank, Bright

N1

N2

Performance - Holemaking

Series 4219

Reverse Spot Facer

HSS, Bright

N1

N2

Performance - Holemaking

Series 4220

Reverse Spot Facer

Carbide, Bright

N1

N2

Performance - Holemaking

Series 402

2 Flute Spot Drill

Carbide, 0° Helix, 2FL, Bright, AlTiN

P1

P2

P3

K1

K2

N1

N2

Performance - Holemaking

Series 400

2 Flute Spade Drill

Carbide, 0° Helix, 2FL, Bright

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 450

2 Flute Jobber Length Twist Drill

Carbide, 2FL, 25° Helix, 118° Point Angle, Bright, TiN, AlTiN

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 460

2 Flute Screw Machine Drill

Carbide, 2FL, 15° Helix, 135° Point Angle, Bright, TiN, AlTiN

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 470

2 Flute Straight Flute Drill

Carbide, 2FL, 0° Helix, 140° Point Angle, Bright, AlTiN

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 453

3 Flute Twist Drill

Carbide, 3FL, 28° Helix, 150° Point Angle, Bright, TiN

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 300

2 Flute Drill/Countersink

Carbide, 2FL, Bright, AlTiN, TiN

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 500

Multi Flute Chucking Reamer

Carbide, Multi FL, 0° Helix, Corner Chamfer, Bright

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

S2

H1

Performance - Holemaking

Series 550

Multi Flute Chucking Reamer

Carbide, Multi FL, 10° Helix, 15° Helix, Corner Chamfer, Bright

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

S2

H1

Performance - Holemaking

Series 331

1 Flute Countersink

Carbide, 1FL, Bright

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 333

3 Flute Countersink

Carbide, 3FL, Bright

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 334

4 Flute Countersink

Carbide, 4FL, Bright

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 336

6 Flute Countersink

Carbide, 6FL, Bright

P1

P2

P3

K1

K2

N1

N2

H1

Performance - Holemaking

Series 601

Radius Boring Bar

Carbide, h6, Bright

P1

P2

P3

M1

M2

K1

K2

N1

N2

S1

S2

H1


Work Materials

P1

P2

P3

K1

K2

N1

N2

H1

Product Offering

Part Number cut_dia_in_display shank_dia_in_display angle_display style Stock List Price
331-001050 (.1250) 1/8 (.1250) 1/8 60 Single End 340 $12.42
331-001060 (.1250) 1/8 (.1250) 1/8 82 Single End 247 $12.42
331-001070 (.1250) 1/8 (.1250) 1/8 90 Single End 587 $12.42
331-001080 (.1250) 1/8 (.1250) 1/8 100 Single End 117 $12.42
331-001090 (.1250) 1/8 (.1250) 1/8 120 Single End 45 $12.42
331-002050 (.1875) 3/16 (.1875) 3/16 60 Single End 109 $16.27
331-002060 (.1875) 3/16 (.1875) 3/16 82 Single End 165 $16.27
331-002070 (.1875) 3/16 (.1875) 3/16 90 Single End 361 $16.27
331-002080 (.1875) 3/16 (.1875) 3/16 100 Single End 129 $16.27
331-002090 (.1875) 3/16 (.1875) 3/16 120 Single End 34 $16.27
331-003050 (.2500) 1/4 (.2500) 1/4 60 Single End 507 $19.26
331-003060 (.2500) 1/4 (.2500) 1/4 82 Single End 190 $19.26
331-003070 (.2500) 1/4 (.2500) 1/4 90 Single End 647 $19.26
331-003080 (.2500) 1/4 (.2500) 1/4 100 Single End 225 $19.26
331-003090 (.2500) 1/4 (.2500) 1/4 120 Single End 93 $19.26
331-004050 (.3125) 5/16 (.2500) 1/4 60 Single End 0 $27.18
331-004080 (.3125) 5/16 (.2500) 1/4 100 Single End 23 $27.21
331-005050 (.3750) 3/8 (.2500) 1/4 60 Single End 66 $32.65
331-005060 (.3750) 3/8 (.2500) 1/4 82 Single End 470 $32.65
331-005070 (.3750) 3/8 (.2500) 1/4 90 Single End 460 $32.68
331-005080 (.3750) 3/8 (.2500) 1/4 100 Single End 94 $32.68
331-005090 (.3750) 3/8 (.2500) 1/4 120 Single End 44 $32.68
331-006050 (.5000) 1/2 (.2500) 1/4 60 Single End 598 $42.92
331-006060 (.5000) 1/2 (.2500) 1/4 82 Single End 148 $42.93
331-006070 (.5000) 1/2 (.2500) 1/4 90 Single End 153 $43
331-006080 (.5000) 1/2 (.2500) 1/4 100 Single End 94 $42.97
331-006090 (.5000) 1/2 (.2500) 1/4 120 Single End 66 $42.95
331-006550 (.5000) 1/2 (.3750) 3/8 60 Single End 125 $44.46
331-006560 (.5000) 1/2 (.3750) 3/8 82 Single End 547 $44.47
331-006570 (.5000) 1/2 (.3750) 3/8 90 Single End 231 $44.54
331-006580 (.5000) 1/2 (.3750) 3/8 100 Single End 201 $44.5
331-007050 (.6250) 5/8 (.2500) 1/4 60 Single End 80 $61.02
331-007060 (.6250) 5/8 (.2500) 1/4 82 Single End 149 $60.94
331-007070 (.6250) 5/8 (.2500) 1/4 90 Single End 26 $61.02
331-007080 (.6250) 5/8 (.2500) 1/4 100 Single End 83 $60.94
331-007090 (.6250) 5/8 (.2500) 1/4 120 Single End 45 $61.05
331-007550 (.6250) 5/8 (.3750) 3/8 60 Single End 37 $63.06
331-007560 (.6250) 5/8 (.3750) 3/8 82 Single End 198 $62.98
331-007570 (.6250) 5/8 (.3750) 3/8 90 Single End 50 $63.06
331-007580 (.6250) 5/8 (.3750) 3/8 100 Single End 18 $62.98
331-008050 (.75) 3/4 (.3750) 3/8 60 Single End 287 $80.41
331-008060 (.75) 3/4 (.3750) 3/8 82 Single End 50 $80.41
331-008070 (.75) 3/4 (.3750) 3/8 90 Single End 89 $80.56
331-008080 (.75) 3/4 (.3750) 3/8 100 Single End 64 $80.41
331-008090 (.75) 3/4 (.3750) 3/8 120 Single End 81 $80.58
331-008550 (.75) 3/4 (.5000) 1/2 60 Single End 28 $82.97
331-008560 (.75) 3/4 (.5000) 1/2 82 Single End 149 $82.97
331-008570 (.75) 3/4 (.5000) 1/2 90 Single End 176 $83.12
331-008580 (.75) 3/4 (.5000) 1/2 100 Single End 29 $82.97
331-010050 (1) 1 (.5000) 1/2 60 Single End 43 $127.75
331-010060 (1) 1 (.5000) 1/2 82 Single End 424 $127.68
331-010070 (1) 1 (.5000) 1/2 90 Single End 123 $127.96
331-010080 (1) 1 (.5000) 1/2 100 Single End 36 $127.57
331-010090 (1) 1 (.5000) 1/2 120 Single End 41 $127.72
331-011050 (1.25) 1-1/4 (.75) 3/4 60 Single End 37 $194.62
331-011060 (1.25) 1-1/4 (.75) 3/4 82 Single End 47 $194.98
331-011070 (1.25) 1-1/4 (.75) 3/4 90 Single End 45 $195.34
331-011080 (1.25) 1-1/4 (.75) 3/4 100 Single End 29 $195.34
331-011090 (1.25) 1-1/4 (.75) 3/4 120 Single End 15 $195.34
331-012050 (1.5) 1-1/2 (.75) 3/4 60 Single End 38 $272.63
331-012060 (1.5) 1-1/2 (.75) 3/4 82 Single End 13 $272.63
331-012070 (1.5) 1-1/2 (.75) 3/4 90 Single End 30 $273.36
331-012080 (1.5) 1-1/2 (.75) 3/4 100 Single End 19 $268.53
331-012090 (1.5) 1-1/2 (.75) 3/4 120 Single End 9 $268.33
331-100060 1/4, 1/2, 3/4 & 1 60 Single End 0 $337.99
331-100082 1/4, 1/2, 3/4 & 1 82 Single End 0 $337.99
331-100090 1/4, 1/2, 3/4 & 1 90 Single End 0 $337.99
331-100100 1/4, 1/2, 3/4 & 1 100 Single End 0 $337.99
331-100120 1/4, 1/2, 3/4 & 1 120 Single End 0 $337.99
331-201050 (.1250) 1/8 (.1250) 1/8 60 Single End 126 $17.85
331-201060 (.1250) 1/8 (.1250) 1/8 82 Single End 73 $17.85
331-201070 (.1250) 1/8 (.1250) 1/8 90 Single End 280 $17.85
331-201080 (.1250) 1/8 (.1250) 1/8 100 Single End 34 $17.85
331-201090 (.1250) 1/8 (.1250) 1/8 110 Single End 156 $17.85
331-201100 (.1250) 1/8 (.1250) 1/8 120 Double End 25 $17.85
331-202050 (.1875) 3/16 (.1875) 3/16 60 Single End 79 $23.55
331-202060 (.1875) 3/16 (.1875) 3/16 82 Single End 75 $23.55
331-202070 (.1875) 3/16 (.1875) 3/16 90 Single End 186 $23.55
331-202080 (.1875) 3/16 (.1875) 3/16 100 Single End 50 $23.55
331-202090 (.1875) 3/16 (.1875) 3/16 110 Single End 15 $23.55
331-202200 (.1875) 3/16 (.1875) 3/16 120 Double End 73 $23.55
331-203050 (.2500) 1/4 (.2500) 1/4 60 Single End 87 $30.03
331-203060 (.2500) 1/4 (.2500) 1/4 82 Single End 289 $30.03
331-203070 (.2500) 1/4 (.2500) 1/4 90 Single End 306 $30.03
331-203080 (.2500) 1/4 (.2500) 1/4 100 Single End 77 $30.03
331-203090 (.2500) 1/4 (.2500) 1/4 110 Single End 22 $30.03
331-203100 (.2500) 1/4 (.2500) 1/4 120 Double End 161 $30.03
331-204050 (.3125) 5/16 (.3125) 5/16 60 Single End 22 $48.35
331-204060 (.3125) 5/16 (.3125) 5/16 82 Double End 45 $48.35
331-204070 (.3125) 5/16 (.3125) 5/16 90 Double End 111 $48.35
331-204080 (.3125) 5/16 (.3125) 5/16 100 Single End 35 $48.35
331-204090 (.3125) 5/16 (.3125) 5/16 110 Double End 20 $48.35
331-204100 (.3125) 5/16 (.3125) 5/16 120 Double End 20 $48.35
331-205050 (.3750) 3/8 (.3750) 3/8 60 Single End 63 $55.02
331-205060 (.3750) 3/8 (.3750) 3/8 82 Single End 157 $55.02
331-205070 (.3750) 3/8 (.3750) 3/8 90 Single End 82 $55.02
331-205080 (.3750) 3/8 (.3750) 3/8 100 Single End 98 $55.02
331-205090 (.3750) 3/8 (.3750) 3/8 110 Single End 13 $55.02
331-205100 (.3750) 3/8 (.3750) 3/8 120 Double End 37 $55.02
331-206050 (.5000) 1/2 (.5000) 1/2 60 Single End 34 $77.14
331-206060 (.5000) 1/2 (.5000) 1/2 82 Single End 66 $77.14
331-206070 (.5000) 1/2 (.5000) 1/2 90 Single End 34 $77.14
331-206080 (.5000) 1/2 (.5000) 1/2 100 Single End 31 $77.14
331-206090 (.5000) 1/2 (.5000) 1/2 110 Single End 26 $77.14
331-206100 (.5000) 1/2 (.5000) 1/2 120 Double End 23 $77.14
331-207050 (.6250) 5/8 (.6250) 5/8 60 Single End 11 $163.17
331-207060 (.6250) 5/8 (.6250) 5/8 82 Single End 12 $163.17
331-207070 (.6250) 5/8 (.6250) 5/8 90 Single End 47 $163.17
331-207080 (.6250) 5/8 (.6250) 5/8 100 Single End 14 $163.17
331-207090 (.6250) 5/8 (.6250) 5/8 110 Double End 8 $163.17
331-207100 (.6250) 5/8 (.6250) 5/8 120 Double End 30 $163.17
331-208050 (.75) 3/4 (.75) 3/4 60 Single End 7 $225.28
331-208060 (.75) 3/4 (.75) 3/4 82 Single End 12 $225.28
331-208070 (.75) 3/4 (.75) 3/4 90 Single End 19 $225.28
331-208080 (.75) 3/4 (.75) 3/4 100 Single End 8 $225.28
331-208090 (.75) 3/4 (.75) 3/4 110 Single End 19 $225.28
331-208100 (.75) 3/4 (.75) 3/4 120 Double End 9 $225.28