2608595053 - HSS-G metal drill bits, DIN 338 2.5 x 30 x 57 mm

The ground HSS metal drill bit is suitable for drilling metal with the highest precision. The ground HSS drill bit with a 135 degree rake angle combines active cutting and perfect centring without slippage, offering the highest precision. The precision-ground and ground HSS metal drill bit also eliminates the need for pre-drilling or pilot drilling up to 10 mm, achieves 40% faster drilling progress and 50% lower thrust force compared to standard-ground and conically ground HSS drill bits. For alloyed and unalloyed steel up to a tensile strength of 900 N/mm2, forged steel, grey cast iron, sintered iron, malleable cast iron, non-ferrous metals, hard plastics. Right-hand metal drill bits type N, 135 degree rake angle, quadruple point to DIN 338, diameter tolerance h8. Cylindrical shank, for use in pillar drills and screwdrivers.