Silverline 991700 Metric HSS Jobber Bits, 11 mm Pack of 5

HSS-R roll forged 4341 high speed steel Manufactured to DIN338 with 118 degree point General purpose 'jobber' drill bits For drilling steel, aluminium, non-ferrous metals, plastics and wood Use cooling agent and drill at slow speeds for results in metals, Weight: 0.6834330122 pounds, Manufacturer: SLTL4