Excellent product. I've used them to fix tight threads on 3 different used gearboxes (all aluminum cases). I was able to successfully repair a small thread (m8) to a larger engine mount thread (M14). They are very durable but you have to be careful when installing them. The inserts are tightly coiled springs. So if you try to push them in you risk breaking the winding and ruining the insert. Regardless, my most recent repair took less than 10 minutes from start to finish.
Upgrade Your Car'S Lighting With 9005 HB3 LED Headlight Bulbs - 8000 Lumens, 6000K Cool White, Halogen Replacement Kit
17 Review
🔧 Restore Threads with AB Tools M12 x 1.5mm Thread Repair Kit/Helicoil - 15pc Set (AN046)
11 Review
Helicoil 5546 8 Metric Coarse Thread
11 Review
Heli-Coil 5334-14 Thread Repair Kit
11 Review