The fastest hss drill on the market product advantages harder the ti2cn coating is harder than tin 3200hv this drill is particularly suitable for drilling into tough steels up to 1 200 n mm the service life also far surpasses conventional hss drills by more than 50 more quickly thanks to its special bevel and the ti2cn coating this drill has a coefficient of friction of only 02 compared to the best drill on the market which reaches only 06 lower pressure requirement in use wit