Review on 1221-308 Thread Repair Kit - Enhance Your Thread Repair with Thread Kits by John Jones

Used to repair damaged threads in an aluminum can end. Easy installation after drilling and tapping. The screws did not twist during installation. I had to buy more inserts to finish both sides and bought the Heli-Coil brand. This causes the bolts to bind. Thread on the screws tore off and had to be redone.