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Compare material, finish, length class, and decimal size equivalents.
Cobalt Steel Drill Bits
 |
Jobbers' Length Round Shank |
 |
Standard |
Tough and wear resistant, cobalt steel bits last at least twice as long as high-speed steel. They can also run up to 25% faster at higher temperatures without being damaged on hard materials, such as nickel.
Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
Uncoated—Polished to eject chips, these are also known as bright finish bits.
Shank | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Jobbers' Length | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Uncoated | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 0.0020" | 0.002" | 1" | 0.01" | Round | 0.039" | Standard | 8904A11 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
