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System of Measurement System of Measurement |
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Overall Length Overall Length |
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Bit Style Bit Style |
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 | Spiral Flute |
Flute Direction Flute Direction |
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| Left Hand |
Point Style Point Style |
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| Standard |
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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Specifications Met Specifications Met |
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Decimal Size Equivalent Decimal Size Equivalent |
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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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Shank Size Shank Size |
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Finish Finish |
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Material Material |
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For Use On For Use On |
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Individual/Set Individual/Set |
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Length Class Length Class |
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 | Jobbers' Length |
Point Angle Point Angle |
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Shank Type Shank Type |
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 | Round |
Drill Bit Decimal Size Equivalents
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About Drill Bits
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High-Speed Steel Left-Hand Drill Bits
Black Oxide
Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws. These bits are jobbers' length and 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.
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 | Specifications Met | Each | |
Metric | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 12.0 mm | 0.4724" | 151mm | 86.6mm | Round | 12mm | Standard | Steel, Iron, Stainless Steel | DIN 338 | 00000000 | 000000 |