Item Type: Thread Insert Kit _x000D_Material: 303 Stainless Steel_x000D_Specification:_x000D_Female Thread: M5 x 0.8_x000D_Male Thread: M8 x 1.25_x000D_Length: Approx. 10mm/0.4in_x000D_Slotting: Yes_x000D_Purpose: Thread Repair_x000D_Case: For example, if the M8 thread is slippery, if you want to continue to use the M8 thread after the restoration, use this method to first expand the M8 thread to the M10 thread, and then use the M8-M10-12 length reducer to change it back to M8 , So because the material of this reducing diameter is stainless steel, it will make the M8 thread more firm 1Effective thread repair tool for threaded holes, economical and efficient. 2Made of high?quality 303 stainless steel, it is strong, corrosion?resistant and durable. 3Can be used in aviation, automobiles, electronic communications, lamps, machinery and radiators, etc. 4Ergonomic design, time?saving and labor?saving, reduces the difficulty of work. 5Built to meet standard specification, strictly follow factory quality control.10 x Thread Inserts