Twist drills from 1 - 10 mm in a stable and unbreakable rose box in 4 different sets (to choose from) + 1 free cutting paste Our twist drills are particularly stable and made of cobalt-alloyed high-speed steel and retain up to approx. 600°C their hardness. Profile-ground cobalt drills with extremely high concentricity are suitable for drilling iron + steel and bronze up to 1300 N/mm² as well as high-strength CrNi-based alloys as well as rust-, acid- and heat-resistant steels, on the right with cylindrical shank according to din 338. Twist drills with a straight shank are suitable for use in Allen drill chucks and, thanks to their split point (from 2.0 mm), have ideal self-centering properties.
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