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About Drill Bits
Compare material, finish, length class, and decimal size equivalents.
Threaded-Shank Drill Bits
All have a 1/4"-28 threaded shank which installs directly into the threaded spindle on a compatible drill. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Thread Size  | Point Style | Specifications Met | For Use On | Each | |
Inch—Short Length | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 3/32" | 0.0938" | 3/4" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 3/32" | 0.0938" | 1 1/4" | 0.69" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 3/32" | 0.0938" | 2 3/8" | 0.94" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 7/64" | 0.1094" | 3/4" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/64" | 0.1094" | 1 1/4" | 0.69" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/64" | 0.1094" | 2 3/8" | 0.94" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 1/8" | 0.125" | 3/4" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/8" | 0.125" | 1 1/4" | 0.69" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/8" | 0.125" | 2 3/8" | 0.94" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 9/64" | 0.1406" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 9/64" | 0.1406" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 5/32" | 0.1563" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 5/32" | 0.1563" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 5/32" | 0.1563" | 2 3/8" | 1.13" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 11/64" | 0.1719" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 11/64" | 0.1719" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 3/16" | 0.1875" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 3/16" | 0.1875" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 3/16" | 0.1875" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 13/64" | 0.2031" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 7/32" | 0.2188" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 7/32" | 0.2188" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/4" | 0.25" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/4" | 0.25" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 1/4" | 0.25" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
Wire Gauge—Short Length | |||||||||||
Black-Oxide High-Speed Steel | |||||||||||
| 40 ga. | 0.098" | 3/4" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 40 ga. | 0.098" | 1 1/4" | 0.69" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 40 ga. | 0.098" | 2 3/8" | 0.88" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 30 ga. | 0.1285" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 30 ga. | 0.1285" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 30 ga. | 0.1285" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 27 ga. | 0.144" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 27 ga. | 0.144" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 27 ga. | 0.144" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 21 ga. | 0.159" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 21 ga. | 0.159" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 21 ga. | 0.159" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 20 ga. | 0.161" | 7/8" | 0.44" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 20 ga. | 0.161" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 20 ga. | 0.161" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 13 ga. | 0.185" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 13 ga. | 0.185" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 13 ga. | 0.185" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 12 ga. | 0.189" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 12 ga. | 0.189" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 11 ga. | 0.191" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 11 ga. | 0.191" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 10 ga. | 0.1935" | 7/8" | 0.38" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 10 ga. | 0.1935" | 1 1/2" | 0.63" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
| 10 ga. | 0.1935" | 2 3/8" | 1.19" | Threaded | 1/4" | 1/4"-28 | Split | NAS965 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000 |
Threaded-Shank Phillips Bits
Phillips
Thread these bits directly into your driving tool for minimal wobble in assembly applications.
For technical drawings and 3-D models, click on a part number.
| Drive Size | For Screw Size | Material | Overall Lg. | Each | |
10-32 Thread Size | |||||
|---|---|---|---|---|---|
| No. 1 | No. 2, No. 3, No. 4 | Steel | 1 1/2" | 0000000 | 00000 |
| No. 2 | No. 5, No. 6, No. 7, No. 8, No. 9, No. 10 | Steel | 1 1/2" | 0000000 | 0000 |
12-24 Thread Size | |||||
| No. 1 | No. 2, No. 3, No. 4 | Steel | 1 1/4" | 0000000 | 0000 |
| No. 2 | No. 5, No. 6, No. 7, No. 8, No. 9, No. 10 | Steel | 1 1/4" | 0000000 | 0000 |
| No. 3 | No. 12, 1/4" | Steel | 1 1/4" | 0000000 | 0000 |