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SPIRAL STEP DRILL HSS TIN
- Designed for metal, steel metal sheets, plastics
- Hole edges remain clean and burr-free
- The drill does not slide on oval surfaces
- Self-centring on rounded and slippery surfaces. Rapid heat dissipation when drilling in hard materials
- Made from 4241 HSS , coated with titanium nitride
- Roller shank
| Index | Size (mm) |
|---|---|
| 77800 | 4, 6, 8, 10, 12 |
| 77801 | 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 |
| 77802 | 6, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38 |