34 piece standard drill bit set supplied in a plastic folding box. The bits are to be used in steel and cast iron. Features include a spiral angle of 28, a point angle of 118 and a split point for bet more→ter positional accuracy. Contents: No. of drills 34 - Drill diameters 1.0(x4), 1.5(x3), 2.0(x2), 2.5, 3.0, 3.3, 3.5, 4.0, 4.2, 4.5, 5.0, 5.5, 6.0, 6.5, 6.8, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0mm