Subland stepped drill bit, DIN 8374 RN medium, 90°
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Subland stepped drill bit, DIN 8374 RN medium, 90°
With straight shank for the production of through holes according to ISO 273, while simultaneously producing countersinks (90°) in shape A and B according to DIN 74 part 1. The cutting speed depends on the large diameter, the feed on the small diameter.
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