The HSS-G metal drill bit is made with a self-centeringsplit point drill tip which eliminates the requirement to pre-punch or pilot drill up to 10 mm diameter This precision-ground drill bit with professional use quality enables up to 40% faster drilling rate and up to 50% lower feed pressure The metal drill bits are suitable for use on alloyed and non-alloyed steel, cast iron, cast steel, sintered iron, malleable cast iron, non-ferrous metals and hard plastics