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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Cobalt Steel Drill Bits
Jobbers' Length Round Shank | Standard |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Titanium Nitride (TiN) Coated | ||||||||||
| 61 Ga. | 0.039" | 1 5/8" | 0.69" | Round | 0.039" | Standard | 27995A838 | 00000 | ||
Uncoated | ||||||||||
| 0.0020" | 0.002" | 1" | 0.01" | Round | 0.039" | Standard | 8904A11 | 00000 | ||
| 0.0024" | 0.0024" | 1" | 0.01" | Round | 0.039" | Standard | 8904A12 | 00000 | ||
| 0.0028" | 0.0028" | 1" | 0.01" | Round | 0.039" | Standard | 8904A13 | 00000 | ||
| 0.0032" | 0.0032" | 1" | 0.01" | Round | 0.039" | Standard | 8904A14 | 00000 | ||
| 0.0039" | 0.0039" | 1" | 0.01" | Round | 0.039" | Standard | 8904A16 | 00000 | ||
| 0.0043" | 0.0043" | 1" | 0.01" | Round | 0.039" | Standard | 8904A17 | 00000 | ||
| 0.0047" | 0.0047" | 1" | 0.01" | Round | 0.039" | Standard | 8904A18 | 00000 | ||
| 0.0051" | 0.0051" | 1" | 0.02" | Round | 0.039" | Standard | 8904A19 | 00000 | ||
| 0.0055" | 0.0055" | 1" | 0.02" | Round | 0.039" | Standard | 8904A21 | 00000 | ||
| 0.0059" | 0.0059" | 1" | 0.02" | Round | 0.039" | Standard | 8904A22 | 00000 | ||
| 0.0071" | 0.0071" | 1" | 0.03" | Round | 0.039" | Standard | 8904A25 | 00000 | ||
| 0.0075" | 0.0075" | 1" | 0.03" | Round | 0.039" | Standard | 8904A26 | 00000 | ||
| 0.0079" | 0.0079" | 1" | 0.05" | Round | 0.039" | Standard | 8904A27 | 00000 | ||
| 0.0087" | 0.0087" | 1" | 0.05" | Round | 0.039" | Standard | 8904A29 | 00000 | ||
| 0.0098" | 0.0098" | 1" | 0.06" | Round | 0.039" | Standard | 8904A33 | 00000 | ||
| 0.0102" | 0.0102" | 1" | 0.06" | Round | 0.039" | Standard | 8904A34 | 00000 | ||
| 0.0106" | 0.0106" | 1" | 0.06" | Round | 0.039" | Standard | 8904A35 | 00000 | ||
| 0.0110" | 0.011" | 1" | 0.06" | Round | 0.039" | Standard | 8904A36 | 00000 | ||
| 0.0118" | 0.0118" | 1" | 0.06" | Round | 0.039" | Standard | 8904A38 | 00000 | ||
| 0.0126" | 0.0126" | 1" | 0.08" | Round | 0.039" | Standard | 8904A41 | 00000 | ||
| 0.0130" | 0.013" | 1" | 0.08" | Round | 0.039" | Standard | 8904A42 | 00000 | ||
| 0.0142" | 0.0142" | 1" | 0.07" | Round | 0.039" | Standard | 8904A45 | 00000 | ||
| 0.0150" | 0.015" | 1" | 0.07" | Round | 0.039" | Standard | 8904A47 | 00000 | ||
| 0.0181" | 0.0181" | 1" | 0.09" | Round | 0.039" | Standard | 8904A56 | 00000 | ||
| 0.0189" | 0.0189" | 1" | 0.09" | Round | 0.039" | Standard | 8904A58 | 00000 | ||
| 0.0197" | 0.0197" | 1" | 0.09" | Round | 0.039" | Standard | 8904A61 | 0000 | ||
| 61 Ga. | 0.039" | 1 5/8" | 0.62" | Round | 0.039" | Standard | 3033A277 | 0000 | ||
High-Speed Steel Drill Bits
Jobbers' Length Round Shank | Extended Length Round Shank | Standard |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Black Oxide | ||||||||||
| 61 Ga. | 0.039" | 1 5/8" | 0.62" | Round | 0.039" | Standard | 2901A237 | 00000 | ||
Titanium Nitride (TiN) Coated | ||||||||||
| 61 Ga. | 0.039" | 1 5/8" | 0.62" | Round | 0.039" | Standard | 29045A819 | 0000 | ||
Uncoated | ||||||||||
| 61 Ga. | 0.039" | 1 5/8" | 0.62" | Round | 0.039" | Standard | 30585A77 | 0000 | ||
Extended Length | ||||||||||
Black Oxide | ||||||||||
| 61 Ga. | 0.039" | 2 1/4" | 1.06" | Round | 0.039" | Standard | 3096A177 | 0000 | ||
Carbide Drill Bits
Jobbers' Length Round Shank |
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | ||||||||||
Uncoated | ||||||||||
| 61 Ga. | 0.039" | 1 1/2" | 0.5" | Round | 0.039" | Four Facet | 2860A77 | 000000 | ||
Chip-Clearing High-Speed Steel Drill Bits
Jobbers' Length High Helix Flute Round Shank | Standard |
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Flute Type | Type | Size | Drill Bit Point Type | Each | |||
Jobbers' Length | |||||||||||
Uncoated | |||||||||||
| 61 Ga. | 0.039" | 1 5/8" | 0.62" | High Helix | Round | 0.039" | Standard | 2912A238 | 00000 | ||

























