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Compare material, finish, length class, and decimal size equivalents.
Precise-Cut High-Speed Steel Drill Bits
 |
Jobbers' Length Round Shank |
 |
Standard |
Produce holes so precise that you don’t need to finish them with a reamer. The double-edged flutes keep these bits centered to drill straighter and smoother than other types, especially in hard metals and composites such as fiberglass. Also known as double-margin drill bits. High-speed steel is the versatile choice for drilling most metals.
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 | Mfr. | Each | |||
Jobbers' Length | |||||||||||
Titanium Nitride (TiN) Coated | |||||||||||
| 3/16" | 0.1875" | 3 1/2" | 2.31" | Round | 3/16" | Standard | Republic Drill | 3021A26 | 00000 | ||
| 13/64" | 0.2031" | 3 5/8" | 2.43" | Round | 13/64" | Standard | Republic Drill | 3021A27 | 0000 | ||
| 7/32" | 0.2188" | 3 3/4" | 2.5" | Round | 7/32" | Standard | Republic Drill | 3021A28 | 0000 | ||
| 1/4" | 0.25" | 4" | 2.75" | Round | 1/4" | Standard | Republic Drill | 3021A31 | 00000 | ||
| 17/64" | 0.2656" | 4 1/8" | 2.87" | Round | 17/64" | Standard | Republic Drill | 3021A32 | 00000 | ||
| 9/32" | 0.2813" | 4 1/4" | 2.93" | Round | 9/32" | Standard | Republic Drill | 3021A33 | 00000 | ||
| 5/16" | 0.3125" | 4 1/2" | 3.18" | Round | 5/16" | Standard | Republic Drill | 3021A35 | 00000 | ||
| 3/8" | 0.375" | 5" | 3.62" | Round | 3/8" | Standard | Republic Drill | 3021A39 | 00000 | ||
| 25/64" | 0.3906" | 5 1/8" | 3.75" | Round | 25/64" | Standard | Republic Drill | 3021A41 | 00000 | ||
| 7/16" | 0.4375" | 5 1/2" | 4.06" | Round | 7/16" | Standard | Republic Drill | 3021A44 | 00000 | ||
| 1/2" | 0.5" | 6" | 4.5" | Round | 1/2" | Standard | Republic Drill | 3021A48 | 00000 | ||
Precise-Cut Carbide Drill Bits
 |
Jobbers' Length Round Shank |
|
Standard |
Even on hard and difficult-to-machine materials, these bits cut holes so precise that you don’t need to finish them with a reamer. The double-edged flutes keep these bits centered to drill straighter and smoother than other types. Carbide bits are the hardest and most wear-resistant to stay sharp at high temperatures and faster speeds. Also known as double-margin drill bits.
Jobbers' Length—These bits have the balance of rigidity and length needed for most applications.
Aluminum Titanium Nitride (AlTiN) Coated—The hardest and most wear-resistant coating, especially at high temperatures. These bits are best for hard and abrasive materials, such as iron and titanium.
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Mfr. | Each | |||
Jobbers' Length | |||||||||||
Aluminum Titanium Nitride (AlTiN) Coated | |||||||||||
| 1/8" | 0.125" | 2 1/2" | 0.75" | Round | 1/4" | Standard | Kyocera | 8980A55 | 0000000 | ||
| 5/32" | 0.1563" | 2 5/8" | 0.87" | Round | 1/4" | Standard | Kyocera | 8980A59 | 000000 | ||
| 11/64" | 0.1719" | 2 5/8" | 0.87" | Round | 1/4" | Standard | Kyocera | 8980A62 | 000000 | ||
| 3/16" | 0.1875" | 2 5/8" | 1" | Round | 1/4" | Standard | Kyocera | 8980A63 | 000000 | ||
| 13/64" | 0.2031" | 2 5/8" | 1" | Round | 1/4" | Standard | Kyocera | 8980A65 | 000000 | ||
| 7/32" | 0.2188" | 2 5/8" | 1" | Round | 1/4" | Standard | Kyocera | 8980A67 | 000000 | ||
| 1/4" | 0.25" | 3 1/8" | 1.31" | Round | 1/4" | Standard | Kyocera | 8980A69 | 000000 | ||
| 9/32" | 0.2813" | 3 1/8" | 1.56" | Round | 5/16" | Standard | Kyocera | 8980A74 | 000000 | ||
| 5/16" | 0.3125" | 3 1/8" | 1.56" | Round | 5/16" | Standard | Kyocera | 8980A76 | 000000 | ||
| 3/8" | 0.375" | 3 1/2" | 1.84" | Round | 3/8" | Standard | Kyocera | 8980A82 | 000000 | ||
| 1/2" | 0.5" | 4 1/4" | 2.31" | Round | 1/2" | Standard | Kyocera | 8980A89 | 000000 | ||
