28 piece standard metric drill bit set supplied in a plastic folding box Drill diameters – mm – 1.0(x4), 1.5(x3), 2.0(x2), 2.5, 3.0, 3.3, 3.5, 4.0 Drill diameters mm – 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 Spiral angle of 28 degrees and a split point of 118 degrees for use on steel and cast iron Split point for better positional accuracy Supplied in a plastic folding box No. of drills – 28