.63in. x 11 NC Thread Repair Kit with Tap and 6 Inserts

Heli-Coil has the most effective and universally accepted method of thread repair. Heli-Coil inserts quickly and permanently restores stripped, worn or damaged threads to their original size and condition. Inserts work in any part of material; aluminum, magnesium, cast iron, bronze, etc. The use of light weight materials in fuel efficient cars means more thread damage..there is a Heli-Coil insert to repair virtually every application. Restore parts that otherwise would have to be scrapped. Thread Size 9/16-18 x .844 Length. Tool Type: 3. Drill Size: 37/64 in (Drill bit not included.). 6 Inserts Per Kit. Dimensions: 5.8 in L x 4 in W x 0.3 in H.