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System of Measurement System of Measurement |
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Size Size | Show |
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Size Size | Hide |
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Decimal Size Equivalent Decimal Size Equivalent |
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For Use On For Use On |
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Shank Size Shank Size |
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Shank Type Shank Type |
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Material Material |
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Bit Style Bit Style |
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Length Class Length Class |
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 | Jobbers' Length |
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Finish Finish |
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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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Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Flute Direction Flute Direction |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Drill Bits
Black Oxide
Black and Gold Oxide
Split
Standard
These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-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 | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 12.2 mm | 0.4803" | 151mm | 76.6mm | Round | 12.2mm | Standard | DIN 338 | Steel, Iron, Stainless Steel | 00000000 | 000000 |
Black-and-Gold Oxide High-Speed Steel | ||||||||||
| 12.2 mm | 0.4803" | 149mm | 110.3mm | Round | 12.2mm | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Short-Length Drill Bits
Black Oxide
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.
Black-oxide drill bits produce less friction than uncoated drill bits.
Shank | Each | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 12.2 mm | 0.4803" | 102mm | 51mm | Round | 12.2mm | Split | DIN 1897 | Steel, Iron, Stainless Steel | 000000000 | 000000 |