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System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Shank Size Shank Size |
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Material Material |
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Bit Style Bit Style |
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![]() | Spiral Flute |
Flute Direction Flute Direction |
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Left Hand |
Length Class Length Class |
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![]() | Jobbers' Length |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Individual/Set Individual/Set |
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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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Overall Length Overall Length |
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Point Angle Point Angle |
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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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Finish Finish |
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Point Style Point Style |
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Standard |
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

Uncoated
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.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
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Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Metric | ||||||||||
Uncoated High-Speed Steel | ||||||||||
2.1 mm | 0.0827" | 49mm | 18.8mm | Round | 2.1mm | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | DIN 338 | 00000000 | 00000 |