Cylinder head damaged thread repair helicoil kit

#threadrepair #helicoil #threadrepairkit Because many of you asked me the size of drill bits you have all kit seizes below : M5x0.8 use 5.2 drill bit - 5x0.8 tap M6x1.0 use 6.2 drill bit - 6x1.0 tap M8x1.25 use 8.3 drill bit - 8x1.25 tap M10x1.5 use 10.3 drill bit - 10x1.5 tap M12x1.75 use 12.4 drill bit - 12x1.75 tap