Coming into a 10 piece set, these metal drill bits feature a milled shaft and are made by high-performance, high-speed steel (HSS) manufactured to DIN 33 for longer life. Drills above 13mm (1/2") have a shank reduced to 12.7mm. For use in alloyed and unalloyed steels up to 900N/mm2 steel cast steel, grey cast-iron, sphericalgraphite cast iron, sintered iron, nickel, brass, etc. Precision ground twist for rapid drilling, long life and excellent concentricity. 5 Pack
Suitable for portable or stationary drilling in steel cast steel, alloyed and non-alloyed material, grey cast-iron, spherical-granite cast iron, sintered iron, nickel, brass etc. Up to 900n/mm²
Special steel made from high-performance, high-speed steel manufactured to DIN 33 for longer life
Precision ground twist for rapid drilling, long life and excellent concentricity