Bovidix 1912103421 Pro Drill Bit Set, 21-Piece 21 drill bits in metric sizes This set contains drill bits of popular metric diameters. Sizes: 1, 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.2, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9, 10, 11, 12, 13 mm Drill bits HSS DIN 338