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
- Tap Part No. - 821-9
- Installation Tool Part No. - 2299-9
- Tool Type - 3
- Insert Package Part No. - R1191-9
- Drill Size - 37/64" (Drill bit not included.)
- 6 Inserts Per Kit
- Note: Image shows part number 5521-10
Heli Coil 5528-9 Inch Fine Thread Repair Kit 
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