Helicoil Thread Repair Kit 5521-7

Quickly and permanently restores stripped, worn or damaged threads to their original size and condition. The hard, stainless steel diamond shaped wire inserts work in just about any part or material, aluminum, magnesium, cast iron, bronze, etc. The insert has a driving tang for installation which is notched for easy removal. Kit contains a Heli-Coil tap, installation tool, 6 inserts and detailed instructions, packaged in durable placon or vinyl pouches. Measures 7/16-14 inches.