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System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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Finish Finish |
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Shank Type Shank Type |
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 | Round |
Bit Style Bit Style | Show |
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 | Spear |
Bit Style Bit Style | Hide |
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 | Spiral Flute |
 | Parabolic Spiral Flute |
 | Multidiameter |
 | Straight Flute |
 | Multi-Tooth |
 | Open Spiral Flute |
 | Flat Blade |
 | Hollow |
| Spear |
Point Style Point Style |
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| Standard |
Individual/Set Individual/Set |
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Flute Direction Flute Direction |
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| Right Hand |
Drill Bit Decimal Size Equivalents
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About Drill Bits
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Drill Bits for Glass and Ceramic
The spear-shaped point drills smoothly through glass and ceramic, reducing the chance of chipping and cracking. Coolant, such as water, is required when drilling with these bits.
Shank | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Each | |
Inch | ||||||||
Uncoated Carbide-Tipped Steel | ||||||||
| 1/8" | 0.125" | 2 1/4" | 1" | Round | 7/64" | Standard | 000000 | 00000 |
| 3/16" | 0.1875" | 2 1/4" | 1" | Round | 5/32" | Standard | 000000 | 0000 |
| 1/4" | 0.25" | 2 5/8" | 1" | Round | 11/64" | Standard | 000000 | 0000 |
| 5/16" | 0.3125" | 3" | 1" | Round | 7/32" | Standard | 000000 | 0000 |
| 3/8" | 0.375" | 3 5/8" | 1" | Round | 15/64" | Standard | 000000 | 00000 |
| 1/2" | 0.5" | 3 5/8" | 1" | Round | 5/16" | Standard | 000000 | 00000 |
| 5/8" | 0.625" | 3 3/4" | 0.25" | Round | 5/16" | Standard | 0000000 | 00000 |
| 3/4" | 0.75" | 4" | 0.25" | Round | 5/16" | Standard | 0000000 | 00000 |
| 7/8" | 0.875" | 4" | 0.25" | Round | 5/16" | Standard | 0000000 | 00000 |
| 1" | 1" | 4" | 0.25" | Round | 5/16" | Standard | 0000000 | 00000 |
Drill Bits for Stone, Granite, and Slate
Multiple cutting edges on the tip allow these bits to drill quickly through natural stone, granite, and other hard, abrasive material.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
Shank | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Features | Each | |
Inch | |||||||||
Titanium-Nitride (TiN) Coated Carbide-Tipped Steel | |||||||||
| 1/8" | 0.125" | 2" | 2" | Round | 1/8" | Standard | __ | 000000 | 00000 |
| 3/16" | 0.1875" | 2" | 2" | Round | 3/16" | Standard | __ | 000000 | 0000 |
| 1/4" | 0.25" | 2 1/4" | 2.25" | Round | 1/4" | Standard | __ | 000000 | 0000 |
| 5/16" | 0.3125" | 2" | 2" | Round | 1/4" | Standard | __ | 000000 | 00000 |
| 3/8" | 0.375" | 3 3/4" | 3.75" | Round | 3/8" | Standard | Flats on Shank | 000000 | 00000 |
| 1/2" | 0.5" | 3 3/4" | 3.75" | Round | 3/8" | Standard | Flats on Shank | 000000 | 00000 |