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 performance 135 split point tip eradicates the need to pre-drill/centre punch." Drill Dia. mm: 3.0 Total Length mm: 100 Working Length mm: 66 Shank Dia. mm: 3.0 Shank Type: Straight Material: M2 Alloyed HSS Steel