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 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 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
Resources
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 |