For drilling carbon and alloy steel, cast iron, non-ferrous metal and plastics. 135° split point tip from 3mm and above prevents the bit from drifting and enables faster penetration. Fully ground from solid material.High grade M2 alloyed High Speed Steel (HSS).Manufactured to DIN 340.Dimensionally precise.High peformance 135° split point tip readicates the need to pre-drill/centre punch..