System of Measurement System of Measurement |
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Shank Type Shank Type |
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 | Tapered Round |
Point Style Point Style |
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| Standard |
For Drilling Type For Drilling Type |
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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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| Right Hand |
Point Angle Point Angle |
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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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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Individual/Set Individual/Set |
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Finish Finish |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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About Masonry Drill Bits
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Tapered-Round-Shank Masonry Drill Bits for Rotary Hammers
Also known as A-taper bits, these fit rotary hammers with a taper-shank chuck. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. This type of bit drills faster and penetrates material with less pressure than rotary-only bits. Also called percussion or impact bits.
For technical drawings and 3-D models, click on a part number.
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | Specifications Met | For Use On | Each | |
Inch | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||||
| 1/4" | 0.25" | 6" | 4" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 000000 |
| 5/16" | 0.3125" | 6" | 4" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 3/8" | 0.375" | 6" | 4" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 3/8" | 0.375" | 9" | 7" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 3/8" | 0.375" | 12" | 10" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 1/2" | 0.5" | 6" | 4" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |
| 1/2" | 0.5" | 12" | 10" | Tapered Round | Standard | ANSI B212.15 | Masonry, Concrete | 0000000 | 00000 |