1.High strength. 2.Corrosion resistance. 3.First grade quality. 4.Easy to operate. 5.Can be used repeatedly. 1.Helicoil repair kits include taps, 7 spanner, drill, extractor, tang brek off tools and some helicoils. 2.We can provide the kits according to customer's requirements3.The kits are economical, and can be made to meet every customer's needs. M8*1.25 Threaded repair sets