Subland stepped drill bit, DIN 8378 RN medium, 90°
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Subland stepped drill bit, DIN 8378 RN medium, 90°
With straight shank for the production of core holes according to DIN 336 part 1, while simultaneously producing free countersinks (90°) according to through holes in line with ISO 273. The cutting speed depends on the large diameter, the feed on the small diameter.
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