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Spiral drill with cyl. Shank
Design: HSS, DIN 338, type W. Profile grinding, right cutting, bright surface, with precise point geometry as well as wide, ground clamping grooves and narrow twist. Without point thinning. Angle of rake larger than normal, normal core thickness and without core gradient. Application: For drilling soft and long-chipping materials. Particularly suitable for soft and long chipping materials, aluminium alloys (long chipping), zinc, copper, silumin, electrodes, plastics (soft) and wood.