For particularly tough or hard metal drilling applications such as stainless steel, Cr-Ni and special acid resistant steelsFully ground from solid materialM35 alloyed HSS steel with 5% Cobalt contentHigh heat resistanceDimensionally precise135° split point from 3mm and above eradicates the need to pre-drill or centre punch. Prevents walking and enables faster penetrationSizes available from 0.5mm – 20.0mm Package Include:10 x HSS Cobalt Gold Drill (Multiple choices)