Clear All
System of Measurement System of Measurement |
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Overall Length Overall Length |
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Length Class Length Class |
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| Extended Length |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Shank Type Shank Type |
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 | Round |
Decimal Size Equivalent Decimal Size Equivalent |
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Bit Style Bit Style |
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 | Spiral Flute |
 | Parabolic Spiral Flute |
Shank Size Shank Size |
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Individual/Set Individual/Set |
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Material Material |
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Finish Finish |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Flute Direction Flute Direction |
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| Right Hand |
Drill Bit Decimal Size Equivalents
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About Drill Bits
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Extended-Length Drill Bits
Uncoated
Access hard-to-reach spots and drill deep holes.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated High-Speed Steel | |||||||||
| 5/16" | 0.3125" | 8" | 5.37" | Round | 5/16" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Extended-Length Chip-Clearing Drill Bits
Access hard-to-reach spots and drill deep holes. Parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. The split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | 8" Overall Lg. | |||||||
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| Drill Bit Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | |
Inch—Parabolic Spiral Flute | ||||||||
Uncoated High-Speed Steel | ||||||||
| 5/16" | 0.3125" | Round | 5/16" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 5.37" | 00000000 | 000000 |