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Compare material, finish, length class, and decimal size equivalents.
Carbide-Tipped Drill Bits for Glass and Ceramic
 |
Spear Bit |
The spear-shaped point grinds away glass and ceramic at a slow speed, reducing the chance of chipping and cracking. These bits are carbide-tipped steel, which is extremely hard and wear resistant to maintain a sharp edge cut after cut. Drilling requires a coolant, such as water.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Type | Size | Drill Bit Point Type | Each | |||
Spear Bit | ||||||||||
Carbide Tipped/Uncoated | ||||||||||
| 1/8" | 0.125" | 2 1/4" | 1" | Round | 7/64" | Standard | 2954A1 | 00000 | ||
| 3/16" | 0.1875" | 2 1/4" | 1" | Round | 5/32" | Standard | 2954A2 | 0000 | ||
| 1/4" | 0.25" | 2 5/8" | 1" | Round | 11/64" | Standard | 2954A3 | 0000 | ||
| 5/16" | 0.3125" | 3" | 1" | Round | 7/32" | Standard | 2954A4 | 0000 | ||
| 3/8" | 0.375" | 3 5/8" | 1" | Round | 15/64" | Standard | 2954A5 | 00000 | ||
| 1/2" | 0.5" | 3 5/8" | 1" | Round | 5/16" | Standard | 2954A7 | 00000 | ||
| 5/8" | 0.625" | 3 3/4" | 0.25" | Round | 5/16" | Standard | 2954A71 | 00000 | ||
| 3/4" | 0.75" | 4" | 0.25" | Round | 5/16" | Standard | 2954A72 | 00000 | ||
| 7/8" | 0.875" | 4" | 0.25" | Round | 5/16" | Standard | 2954A73 | 00000 | ||
| 1" | 1" | 4" | 0.25" | Round | 5/16" | Standard | 2954A74 | 00000 | ||
Drill Bits for Glass and Ceramic
 |
Core Bit |
Quickly create large holes in sheets of glass and ceramic using a drill press. These bits drill smoothly through fragile materials, reducing the chance of chipping and cracking. They have a diamond coating, the hardest finish for the longest life. Bits require an adapter (sold separately) to supply coolant during drilling.
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Bit ID | Diamond Tip Lg. | Diamond Tip Grit | Thread Size | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Core Bit | |||||||||||
Diamond Coated | |||||||||||
| 3/32" | 0.0938" | 3 1/2" | 2" | 0.043" | 1/8" | 100 | 5/8"-18 | 2868A46 | 0000000 | ||
| 1/8" | 0.125" | 3 1/2" | 2" | 0.075" | 1/4" | 100 | 5/8"-18 | 2868A21 | 000000 | ||
| 5/32" | 0.1563" | 3 1/2" | 2" | 0.106" | 1/4" | 100 | 5/8"-18 | 2868A22 | 000000 | ||
| 3/16" | 0.1875" | 3 1/2" | 2" | 0.137" | 1/4" | 100 | 5/8"-18 | 2868A23 | 000000 | ||
| 7/32" | 0.2188" | 3 1/2" | 2" | 0.169" | 1/4" | 100 | 5/8"-18 | 2868A27 | 000000 | ||
| 1/4" | 0.25" | 3 1/2" | 2" | 0.2" | 1/4" | 100 | 5/8"-18 | 2868A24 | 000000 | ||
| 9/32" | 0.2813" | 3 1/2" | 2" | 0.231" | 1/4" | 100 | 5/8"-18 | 2868A28 | 000000 | ||
| 5/16" | 0.3125" | 3 1/2" | 2" | 0.262" | 1/4" | 100 | 5/8"-18 | 2868A29 | 000000 | ||
| 3/8" | 0.375" | 3 1/2" | 2" | 0.325" | 1/4" | 100 | 5/8"-18 | 2868A25 | 000000 | ||
| 7/16" | 0.4375" | 3 1/2" | 2" | 0.387" | 1/4" | 100 | 5/8"-18 | 2868A33 | 000000 | ||
| 1/2" | 0.5" | 3 1/2" | 2" | 0.446" | 1/4" | 100 | 5/8"-18 | 2868A26 | 000000 | ||
| 9/16" | 0.5625" | 3 1/2" | 2" | 0.504" | 1/4" | 100 | 5/8"-18 | 2868A18 | 000000 | ||
| 5/8" | 0.625" | 3 1/2" | 2" | 0.562" | 1/4" | 100 | 5/8"-18 | 2868A35 | 000000 | ||
| 3/4" | 0.75" | 3 1/2" | 2" | 0.692" | 1/4" | 100 | 5/8"-18 | 2868A36 | 000000 | ||
| 7/8" | 0.875" | 3 1/2" | 2" | 0.817" | 1/4" | 100 | 5/8"-18 | 2868A38 | 000000 | ||
| 1" | 1" | 3 1/2" | 2" | 0.94" | 1/4" | 100 | 5/8"-18 | 2868A37 | 000000 | ||
| 1 1/4" | 1.25" | 3 1/2" | 2" | 1.19" | 1/4" | 100 | 5/8"-18 | 2868A39 | 000000 | ||
