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System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent | Show |
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Decimal Size Equivalent Decimal Size Equivalent | Hide |
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Shank Type Shank Type |
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| Reduced Round | Morse Taper |
For Use On For Use On |
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Bit Style Bit Style |
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 | Spiral Flute |
Length Class Length Class |
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| Reduced Shank Length |
Material Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Shank Size Shank Size |
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Finish Finish |
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Flute Direction Flute Direction |
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| Right Hand |
Individual/Set Individual/Set |
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Morse Taper Diameter Morse Taper Diameter |
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Specifications Met Specifications Met |
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Morse Taper Number Morse Taper Number |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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1/2" Diameter Reduced-Shank Drill Bits
Black and Gold Oxide with Flats on Shank
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
Drill bits with a split point keep centered without a pilot hole.
Shank | Drill Bits with Flats on Shank | ||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | For Use On | Point Style | Each | |
Metric | |||||||||
Black and Gold Oxide High-Speed Steel | |||||||||
| 25.0 mm | 0.9842" | 152mm | 63.5mm | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
For technical drawings and 3-D models, click on a part number.
Morse Taper | |||||||||||
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| Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Metric | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 25.0 mm | 0.9842" | 3 | 0.938" | 281mm | 109.9mm | Morse Taper | Standard | DIN 345 | Steel, Iron, Stainless Steel | 00000000 | 000000 |