System of Measurement System of Measurement |
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Shank Size Shank Size |
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Shank Type Shank Type |
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 | Reduced Round |
Length Class Length Class |
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| Reduced Shank Length |
For Use On For Use On |
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Point Angle Point Angle |
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Point Style Point Style |
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| Split |
Bit Style Bit Style |
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 | Spiral Flute |
Material Material |
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Finish Finish |
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Individual/Set Individual/Set |
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Flute Direction Flute Direction |
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| Right Hand |
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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Drill Bit Decimal Size Equivalents
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About Drill Bits
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3/8" Diameter Reduced-Shank Drill Bits
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. A split point keeps the bit centered without a pilot hole.
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 | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 25/64" | 0.3906" | 5 1/8" | 3.75" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 000000 |
| 13/32" | 0.4063" | 5 1/4" | 3.88" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 27/64" | 0.4219" | 5 3/8" | 3.94" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/16" | 0.4375" | 5 1/2" | 4.06" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 29/64" | 0.4531" | 5 5/8" | 4.19" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 15/32" | 0.4688" | 5 3/4" | 4.31" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 31/64" | 0.4844" | 5 7/8" | 4.38" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 1/2" | 0.5" | 6" | 4.5" | Reduced Round | 3/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 |