Review on 🔧 Heli-Coil 554612 M12 X 1.75 Metric Kit: Thread Repair Solution for Durable Connections by Robert Rick

Very happy with the result of this kit. I cut a bolt hole in a Brembo caliper and this kit worked great for the repair. Was able to straight drill the hole with a recommended Vermont American 31/64 bit in a hand drill with a caliper in a vise. Cleaned the hole and sprayed the Remington Gun Oil I had on hand to lubricate the faucet. I've lowered the faucet a quarter turn at a time using a 12 point 11mm socket and then turned it slightly slowly, but the thread cuts perfectly. Then cleaned again with brake cleaner to remove the oil from the threads so the Loctite had a clean surface to stick to. I coated the freshly cut threads with Loctite. Then, using a 12-point 10mm socket over the helicoil insertion tool, I turned the spiral up to level with the top and snapped off the bottom tab. I left this setup for 24 hours and then installed the caliper with the original bolt with no problem, about 80lb/ft of torque, and the insert wouldn't move and held tight.