M12 x1.25 Thread Repair Insert Kit Perma Coil 3221-M12F USA Fits Heli
M4 x 0.7 Metric Thread Repair Kit Perma Coil 1221-304 Fit Heli 4MM USA w/Insert
M7 x 1.0 Perma Coil 1221-307 Metric Thread Repair Kit Fit HELI USA 7MM w/Inserts
3/8-16 NC Thread Insert Repair Kit Perma Coil 1208-106 USA Fits Heli USA
