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Friction Drill Bits for Tapping Sheet Metal
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Friction heat from these bits melts through sheet metal to produce a hole with a raised lip in seconds. The lip is approximately three times the material thickness, providing enough thread engagement to tap directly into thin sheet metal. That eliminates the need for weld nuts, rivet nuts, or other inserts. Because friction drilling displaces material rather than cutting it, there are no chips to clean up. The formed bushing is also stronger than the original sheet. Pair these bits with a friction drill and a collet, sold separately. Use them on a drill press, milling machine, or CNC machine.
Friction Drill Bits | Friction Drill Collets | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
For Hole Thread Size | Dia. | Shank Dia., mm | For Material Thk. Range | Min. Rotation Speed, rpm | Material | Each | Each | |||
| 6-32 | 0.12" | 6 | 0.0394" to 0.0591" | 2,300 | Tungsten Carbide | 1643A21 | 000000 | 1643A611 | 000000 | |
| 8-32 | 0.15" | 6 | 0.0394" to 0.0591" | 2,200 | Tungsten Carbide | 1643A22 | 00000 | 1643A611 | 00000 | |
| 10-24 | 0.17" | 6 | 0.0394" to 0.0787" | 2,100 | Tungsten Carbide | 1643A23 | 00000 | 1643A611 | 00000 | |
| 1/4"-20 | 0.22" | 8 | 0.0394" to 0.0787" | 2,000 | Tungsten Carbide | 1643A24 | 00000 | 1643A612 | 00000 | |
| 5/16"-18 | 0.28" | 8 | 0.0394" to 0.0984" | 1,600 | Tungsten Carbide | 1643A25 | 000000 | 1643A612 | 00000 | |
| 3/8"-16 | 0.34" | 10 | 0.0394" to 0.0984" | 1,500 | Tungsten Carbide | 1643A26 | 000000 | 1643A613 | 00000 | |
| 1/2"-13 | 0.46" | 14 | 0.0339" to 0.1181" | 1,300 | Tungsten Carbide | 1643A27 | 000000 | 1643A614 | 00000 | |
