Pro Insert M4 - PRI

Is a system of threaded inserts to quickly and safely replace damaged or worn threads. The sleeves are made in one solid piece with hardened locking pins that protects against rotation even with repeated tightening. Easy to install with standard drill and tap sizes. Also very simple, if necessary, to remove with standard drill without damaging existing threads. Ideal as a replacement threads in soft metals such as magnesium and aluminum.