Drill Bit Shank Adapters for Power Screwdrivers and Impact Drivers
For use in power screwdrivers and impact drivers that accept a 1/4" hex shank, each adapter holds a variety of round-shank drill bit sizes for quick tool changes.
For technical drawings and 3-D models, click on a part number.
For Drill Bit Inch Size | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Inch | mm | Wire Gauge | Letter | Decimal Equivalent Range | For Drill Bit Shank Type | Hex Shank Size | Overall Lg. | Material | Each | |
| 1/16" | 1.4, 1.45, 1.5, 1.55, 1.6 | 52, 53, 54 | __ | 0.047"-0.062" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 00000 |
| 5/64" | 1.7, 1.75, 1.8, 1.85, 1.9, 1.95, 2 | 45, 46, 47, 48, 49, 50, 51 | __ | 0.065"-0.08" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 3/32" | 2.1, 2.15, 2.2, 2.25, 2.3, 2.35, 2.4 | 40, 41, 42, 43, 44 | __ | 0.081"-0.096" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 7/64" | 2.5, 2.6, 2.7, 2.8 | 33, 34, 35, 36, 37, 38, 39 | __ | 0.095"-0.11" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 1/8" | 2.9, 3, 3.1, 3.2 | 30, 31, 32 | __ | 0.111"-0.126" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 9/64" | 3.3, 3.4, 3.5, 3.6 | 27, 28, 29 | __ | 0.126"-0.141" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 5/32" | 3.7, 3.8, 3.9, 4 | 20, 21, 22, 23, 24, 25, 26 | __ | 0.144"-0.159" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 11/64" | 4.1, 4.2, 4.3, 4.4 | 16, 17, 18, 19 | __ | 0.158"-0.173" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 3/16" | 4.5, 4.6, 4.7, 4.8 | 11, 12, 13, 14, 15 | __ | 0.174"-0.189" | Round | 1/4" | 1 3/4" | Steel | 0000000 | 0000 |
| 13/64" | 4.9, 5, 5.1, 5.2 | 5, 6, 7, 8, 9, 10 | __ | 0.189"-0.204" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 7/32" | 5.3, 5.4, 5.5, 5.6 | 2, 3, 4 | __ | 0.205"-0.22" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 15/64" | 5.7, 5.8, 5.9, 6 | 1 | A, B | 0.223"-0.238" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 1/4" | 6.1, 6.2, 6.3, 6.4 | __ | C, D, E | 0.237"-0.252" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 9/32" | 6.8, 6.9, 7, 7.1, 7.2 | __ | I, J, K | 0.268"-0.283" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 5/16" | 7.3, 7.4, 7.5, 7.6 | __ | L, M, N | 0.287"-0.302" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |
| 3/8" | 9.2, 9.3, 9.4, 9.5 | __ | U, V | 0.362"-0.377" | Round | 1/4" | 2 1/4" | Steel | 0000000 | 0000 |