Bosch Titanium 12 x 151mm High Speed Steel Twist Drill Bit
3.5mm High Speed Steel Drill Bit
3mm HSS Steel Drill Bit
High quality straight shank; hot roll forged flute and special heat treatment gives additional toughness; right hand cutting. Designed for drilling in steel, cast steel , grey cast iron, spheroidal graphite iron, sintered metal and low hardness alloyed metals.