The HSS-G step drill with peak angle of 118° and step angle of 90° allows complex and precise boreholes in all types of aluminium, steel, copper, brass and plastic of strengths up to 900 N/mm2 and partially in bronze and cast iron. The improved chip removal thanks to the spiral nut and its higher service life are its distinguishing features. Thanks to the CBN sanded drill tip with a crosswise sanded surface acc. to DIN 1412 C no contact pressure is required during drilling.
Size / drill Ø
09 / 4 - 12 mm
Made in Germany