Covers the range M5, M6, M8, M10 & M12 Complete thread repair workshop kit Includes inserts in 1D, 1.5D & 2D lengths Includes V-Coil taps, drills, inserting tools & tang break tools Inserts are made from aerospace specification stainless steel Taps and drills are made from HSS. Includes tap wrench, screwdriver and pitch gauge