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About Drill Bits
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Compare material, finish, length class, and decimal size equivalents.
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 | ||
Rebar-Cutting Core Drill Bits for Concrete
Threaded-Hub Shank for Rotary Only Drilling
 |
Bits are designed for wet drilling on a drilling rig. To avoid damage to bits and tools, do not use for dry drilling or with portable drills or grinders.
Drill Bit Size | Decimal Size Equiv. | Overall Lg. | Max. Drilling Dp. | Shank Size | Thread Size | Bit ID | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Diamond Coated | ||||||||||
Standard Point | ||||||||||
| 1" | 1" | 15 1/2" | 13" | 1" | 5/8"-11 | 3/4" | 2872A51 | 0000000 | ||
| 1 1/8" | 1.125" | 15 1/2" | 13" | 1 1/8" | 5/8"-11 | 7/8" | 2872A29 | 000000 | ||
| 1 1/4" | 1.25" | 15 1/2" | 13" | 1 1/4" | 5/8"-11 | 1" | 2872A52 | 000000 | ||
| 1 3/8" | 1.375" | 15 1/2" | 13" | 1 3/8" | 5/8"-11 | 1 1/8" | 2872A31 | 000000 | ||
| 1 1/2" | 1.5" | 15 1/2" | 13" | 1 1/2" | 5/8"-11 | 1 1/4" | 2872A53 | 000000 | ||
| 1 3/4" | 1.75" | 15 1/2" | 13" | 1 3/4" | 1 1/4"-7 | 1 1/2" | 2872A54 | 000000 | ||
| 2" | 2" | 16 1/4" | 14.5" | 2" | 1 1/4"-7 | 1 3/4" | 2872A55 | 000000 | ||
| 2 1/4" | 2.25" | 15 1/2" | 13" | 2 1/4" | 1 1/4"-7 | 2" | 2872A34 | 000000 | ||
| 2 1/2" | 2.5" | 15 1/2" | 13" | 2 1/2" | 1 1/4"-7 | 2 1/4" | 2872A56 | 000000 | ||
| 2 3/4" | 2.75" | 15 1/2" | 13" | 2 3/4" | 1 1/4"-7 | 2 1/2" | 2872A35 | 000000 | ||
| 3" | 3" | 16 7/16" | 14.5" | 3" | 1 1/4"-7 | 2 3/4" | 2872A57 | 000000 | ||
| 3 1/2" | 3.5" | 15 1/2" | 13" | 3 1/2" | 1 1/4"-7 | 3 1/4" | 2872A37 | 000000 | ||
| 4" | 4" | 15 1/2" | 13" | 4" | 1 1/4"-7 | 3 3/4" | 2872A58 | 000000 | ||
| 4 1/2" | 4.5" | 15 1/2" | 13" | 4 1/2" | 1 1/4"-7 | 4 1/4" | 2872A59 | 000000 | ||
| 5" | 5" | 15 1/2" | 13" | 5" | 1 1/4"-7 | 4 3/4" | 2872A61 | 000000 | ||
| 6" | 6" | 15 1/2" | 13" | 6" | 1 1/4"-7 | 5 3/4" | 2872A62 | 000000 | ||
| 7" | 7" | 15 1/2" | 13" | 7" | 1 1/4"-7 | 6 3/4" | 2872A43 | 000000 | ||
| 8" | 8" | 15 1/2" | 13" | 8" | 1 1/4"-7 | 7 5/8" | 2872A63 | 000000 | ||
| 10" | 10" | 15 1/2" | 13" | 10" | 1 1/4"-7 | 9 5/8" | 2872A22 | 000000 | ||
| 12" | 12" | 15 1/2" | 13" | 12" | 1 1/4"-7 | 11 5/8" | 2872A23 | 000000 | ||
 |
Thread SIze | ||||||
|---|---|---|---|---|---|---|
Overall Lg. | Male Thread Size | Female Thread Size | Each | |||
For Threaded-Hub-Shank Drill Bits | ||||||
| 5 3/8" | 5/8"-11 | 1 1/4"-7 | 2872A99 | 0000000 | ||
Drill Rig Thread Adapters for Rebar-Cutting Core Drill Bits
|
Thread Size | ||||||
|---|---|---|---|---|---|---|
Overall Lg. | Male | Female | Each | |||
For Threaded-Hub-Shank Drill Bits | ||||||
| 5 3/8" | 5/8"-11 | 1 1/4"-7 | 2872A99 | 0000000 | ||
