Helicoil 5546-12 Thread Repair Kits - M12 (554612)

Inserts work in any part of material; aluminum, magnesium, cast iron, bronze, etc. there is a Heli-Coil insert to repair virtually every application. - 2087-12Installation Tool Part No. - R1084-12Drill Size - 31/64" (Drill bit not included.).