MANUAL SCREW TAP AND THREAD CUTTER SET, METRIC, 39-piece. Is the thread or internal thread damaged?! This high-quality thread cutter and drill set will help and will make you independent of workshops. Not just for repairs – the three-stage core tape sets made of HSS steel also enable you to create new threads in steel and aluminum yourself like a professional. Contents: 1 adjustable tap wrench, 1 die stock, 1 screw tap holder, 7 HSS core hole bits in the sizes 2.5, 3.3, 4.2, 5, 6.8, 8.6, 10.3 mm, 7 three-piece manual screw tape sets M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.757.Thread cutters M3 x 0.5, M4 x 0.7, M5 x 0.8, M6 x 1.0, M8 x 1.25, M10 x 1.5, M12 x 1.75.