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About Drill Bits
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Compare material, finish, length class, and decimal size equivalents.
Carbide-Tipped Drill Bits for Hardened Steel
 |
Jobbers' Length Round Shank |
Straight flutes withstand the heavy pressure needed to penetrate hardened steel. These bits cut more aggressively and resist stress better than spiral-flute bits. A lower-priced alternative to solid carbide, they stay sharp when drilling abrasive material but won’t last as long.
Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Uncoated | ||||||||||
| 3/16" | 0.1875" | 3 1/2" | 0.75" | Round | 3/16" | Notched | 2973A19 | 000000 | ||
| 13/64" | 0.2031" | 3 3/4" | 0.81" | Round | 13/64" | Notched | 2973A21 | 00000 | ||
| 7/32" | 0.2188" | 3 3/4" | 0.87" | Round | 7/32" | Notched | 2973A22 | 00000 | ||
| 15/64" | 0.2344" | 4" | 0.93" | Round | 15/64" | Notched | 2973A23 | 00000 | ||
| 1/4" | 0.25" | 4" | 1" | Round | 1/4" | Notched | 2973A24 | 00000 | ||
| 17/64" | 0.2656" | 4 1/4" | 1.06" | Round | 17/64" | Notched | 2973A25 | 00000 | ||
| 9/32" | 0.2813" | 4 1/4" | 1.12" | Round | 9/32" | Notched | 2973A26 | 00000 | ||
| 19/64" | 0.2969" | 4 1/2" | 1.18" | Round | 19/64" | Notched | 2973A27 | 00000 | ||
| 5/16" | 0.3125" | 4 1/2" | 1.25" | Round | 5/16" | Notched | 2973A28 | 00000 | ||
| 21/64" | 0.3281" | 4 3/4" | 1.31" | Round | 21/64" | Notched | 2973A29 | 00000 | ||
| 11/32" | 0.3438" | 4 3/4" | 1.37" | Round | 11/32" | Notched | 2973A31 | 00000 | ||
| 23/64" | 0.3594" | 5" | 1.43" | Round | 23/64" | Notched | 2973A52 | 00000 | ||
| 3/8" | 0.375" | 5" | 1.5" | Round | 3/8" | Notched | 2973A33 | 00000 | ||
| 25/64" | 0.3906" | 5 1/4" | 1.56" | Round | 25/64" | Notched | 2973A34 | 00000 | ||
| 13/32" | 0.4063" | 5 1/4" | 1.62" | Round | 13/32" | Notched | 2973A35 | 00000 | ||
| 27/64" | 0.4219" | 5 1/2" | 1.68" | Round | 27/64" | Notched | 2973A36 | 00000 | ||
| 7/16" | 0.4375" | 5 1/2" | 1.75" | Round | 7/16" | Notched | 2973A37 | 00000 | ||
| 15/32" | 0.4688" | 5 3/4" | 1.87" | Round | 15/32" | Notched | 2973A39 | 00000 | ||
| 1/2" | 0.5" | 6" | 2" | Round | 1/2" | Notched | 2973A42 | 00000 | ||
| 17/32" | 0.5313" | 6" | 2.12" | Round | 17/32" | Notched | 2973A43 | 00000 | ||
| 9/16" | 0.5625" | 6" | 2.25" | Round | 9/16" | Notched | 2973A44 | 00000 | ||
| 5/8" | 0.625" | 7" | 2.5" | Round | 5/8" | Notched | 2973A46 | 00000 | ||
| 3/4" | 0.75" | 8" | 3" | Round | 3/4" | Notched | 2973A51 | 000000 | ||
| 5.0 mm | 0.1969" | 95 mm | 20 mm | Round | 5 mm | Notched | 2973A62 | 00000 | ||
| 5.5 mm | 0.2165" | 95 mm | 22 mm | Round | 5.5 mm | Notched | 2973A63 | 00000 | ||
| 6.0 mm | 0.2362" | 102 mm | 24 mm | Round | 6 mm | Notched | 2973A64 | 00000 | ||
| 6.5 mm | 0.2559" | 108 mm | 26 mm | Round | 6.5 mm | Notched | 2973A65 | 00000 | ||
| 7.0 mm | 0.2756" | 108 mm | 28 mm | Round | 7 mm | Notched | 2973A66 | 00000 | ||
| 7.5 mm | 0.2953" | 114 mm | 30 mm | Round | 7.5 mm | Notched | 2973A67 | 00000 | ||
| 8.0 mm | 0.315" | 114 mm | 32 mm | Round | 8 mm | Notched | 2973A68 | 00000 | ||
| 8.5 mm | 0.3346" | 121 mm | 34 mm | Round | 8.5 mm | Notched | 2973A69 | 00000 | ||
| 9.0 mm | 0.3543" | 127 mm | 36 mm | Round | 9 mm | Notched | 2973A71 | 00000 | ||
| 9.5 mm | 0.374" | 127 mm | 38 mm | Round | 9.5 mm | Notched | 2973A72 | 00000 | ||
| 10.0 mm | 0.3937" | 133 mm | 40 mm | Round | 10 mm | Notched | 2973A73 | 00000 | ||
| 10.5 mm | 0.4134" | 140 mm | 42 mm | Round | 10.5 mm | Notched | 2973A74 | 00000 | ||
| 11.0 mm | 0.4331" | 140 mm | 44 mm | Round | 11 mm | Notched | 2973A75 | 00000 | ||
| 11.5 mm | 0.4528" | 146 mm | 46 mm | Round | 11.5 mm | Notched | 2973A76 | 00000 | ||
| 12.0 mm | 0.4724" | 146 mm | 48 mm | Round | 12 mm | Notched | 2973A77 | 00000 | ||
| 12.5 mm | 0.4921" | 152 mm | 50 mm | Round | 12.5 mm | Notched | 2973A78 | 00000 | ||
| 13.0 mm | 0.5118" | 152 mm | 52 mm | Round | 13 mm | Notched | 2973A79 | 00000 | ||
| 13.5 mm | 0.5315" | 152 mm | 54 mm | Round | 13.5 mm | Notched | 2973A81 | 00000 | ||
| 14.0 mm | 0.5512" | 152 mm | 56 mm | Round | 14 mm | Notched | 2973A82 | 00000 | ||
