System of Measurement System of Measurement |
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For Use On For Use On |
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Length Class Length Class |
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| Extended Length |
Finish Finish |
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Material Material |
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Shank Type Shank Type |
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Bit Style Bit Style |
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 | Spiral Flute |
Individual/Set Individual/Set |
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Flute Direction Flute Direction |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Specifications Met Specifications Met |
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About Drill Bits
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Drill Bit Decimal Size Equivalents
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Short-Length Drill Bits
Black-oxide drill bits produce less friction than uncoated drill bits.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Letter | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| O | 0.316" | 3" | 1.05" | Round | 0.316" | Split | NAS907 Type C | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| S | 0.348" | 3 1/8" | 1.05" | Round | 0.348" | Split | NAS907 Type C | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Extended-Length Drill Bits
Black-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 3/64" | 0.0469" | 2 1/4" | 1.05" | Round | 3/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Wire Gauge | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 56 ga | 0.0465" | 2 1/4" | 1.05" | Round | 0.0465" | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Short-Length Cobalt Steel Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Letter | |||||||||
Uncoated Cobalt Steel | |||||||||
| F | 0.257" | 2 5/8" | 1.05" | Round | 0.257" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |