The Metabo HSS-R Drill Bits are a roll-milled version with a cylindrical, type N, 118° cone-shaped tip and shell polished surface. They are suitable for drilling in steel, non-ferrous metals, alloyed and non-alloyed cast steel, with a tensile strength of up to 900 N/mm². Supplied in a handy metal case, this set contains drill bits in the following sizes: 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, and 10mm.