Bosch 12mm metal Drill Bit 

Bosch 12mm HSS-cobalt drill bit (part number 2-608-585-869) is suitable for drilling alloyed and non-alloyed steel up to a tensile strength of 1000 N/mm², stainless steel V2A/V4A, cast steel, cast iron and acid/heat-resistant steels. This precision drill bit has a split point and is extremely resistant to heat and wear. It is ideal for use with pillar drills and drill stands