BOSCH 25-piece ProBox set HSS-TiN 1-13 mm screwdriver 2608587019

The ground HSS-TiN twist drill bit achieves maximum service life when drilling metal. When using a suitable cooling system, the friction and wear are as low as possible due to the titanium nitride coating. The high surface quality of this ground HSS twist drill ensures extended usability. It is suitable for alloyed and unalloyed steel, malleable cast iron, cast iron, sintered iron, nickel silver, copper, bronze and hard plastics such as Plexiglas. The HSS-TiN twist drill is manufactured in accordance with DIN 338. It belongs to drill type N (small side chip angle) with a drill point of 135 degrees and a diameter tolerance of h8. The cross-ground drill point enables active drilling and perfect centering without wandering. Not suitable for aluminum. Use only with coolant.