... equipment,plenty experience timely delivery ISO9001 HSS STRAIGHT SHANK TWIST DRILL BIT,DIN338, BLACK OXIDEHot rolled flute, milled flute, right-hand ... standard high speed steel.Coating is very hard giving very long drill bit life, up to 8 times.For drilling in steel, ... , sintered metal, non-ferrous metal and plasticsDia.1mm -13mmHSS Drill Bit, Morse Taper Shank, General Purpose, DIN 345 Roll-forged/ ...