Description
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Special step drill for screw holes, HSS step drill for burr-free drilling of through holes for screw hole pull screws M8 (3/8) -M10 (7/16) -M12-M16-3/4-M20 in material up to 4 mm thick. Suitable for use in hand and pillar drills, a total of 9 drilling steps, mounting shaft (10 mm diameter) with 3 driving surfaces prevents slipping in the drill chuck.
| Property | Value |
| With edge breaker: | yes |
| Spiral groove: | no |
| Number of drilling steps: | 9 |
| Unit of measurement: | mm |
| Min. drilling diameter: | 5 mm |
| Max. drilling diameter: | 21 mm |
| Number of cutting edges: | 2 |
| Replaceable centering tip: | no |
| Hardened carbide version: | yes |
| Max. Plate thickness: | 4 mm |
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