Ideal for DIY, workshop and automotive use for cutting new threads on bolts and in holes and for cleaning existing threads. Metric sizes 3 x 0.5, 3.5 x 0.6, 4 x 0.7, 5 x 0.8, 6 x 1, 8 x 1.25, 10 x 1.5, 12 x 1.75. 1 x outside diameter split dies 1x tap wre