1. Automatic centering: thanks to the special shape of the tip, the step drill automatically centres – even on rounded and slippery surface. This means that the use of a grain is not necessary. Sizes: as desired (see selection) e.g. 4-12, 6-20, 4-32, 4-39 mm or also available as a practical set of 3 (4-32 mm) or 4-39 mm. Versatile: ideal for materials such as steel, non-ferrous metal, sheet metal, wood, plastics and much more. Sharp edges? No! Thanks to the special shape, the burr formation is significantly and automatically reduced.
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