HSS cobalt jobber drills have a 135° splitt point tip from 3mm and above which eradicates the need to pre-drill/centre punch. Prevents "walking" and enables faster penetration. It is to be used for particularly tough or hard metal drilling applications, such as stainless steel, Cr-Ni and special acid resistant steels. It is made from fully ground solid material. It is M35 alloyed HSS steel with 5% Cobalt content and manufactured to DIN338.