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.
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 | 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 |