38188 Metr Recoil Kit M18X1.5

The Recoil System is the simple way to repair stripped or damaged threads. It provides stronger and more efficient threads which have great holding power. The system is quick and easy to use and is ideal for alloys and other light materials. The recoil insert, which is larger in diameter than the tapped hole, is compressed during installation then allowed to spring back, permanently anchoring into place. The Recoil System consists of Recoil stainless steel helically wound precision inserts, high quality HSS taps and installation tools

* UNF - Unified Fine Thread
**UNC = United Coarse Thread
*** Metric = Metric & Spark Plug (ISO)