Review on 🔧 Highking Tool Thread Repair Kit: M4 x 0.7mm Metric Thread Repair Insert Compatible Hand Tool Set for Auto Repairing (M4-0.7) by Sean Young

I ordered this kit because I "thought" it would be a decent kit. It's just a regular set. I'm a military locksmith and would recommend buying a genuine Heli-Coil brand with Helicoil-branded gear. I needed this kit because I was in a dilemma to get the job done. The supplied spiral coils are inexpensive, the shaft at the bottom tends to roll inwards during installation. They claim the hardware is rustproof, they're not sure. So breaking a tail is a pain. The installation tool is very cheap and the slot that the stem is in will bend and make a mess. The slot is also too deep. Most legal coil assembly tools simply have a notch on the bottom of the tool. The kit did the job but took a lot longer than a true American kit. Although the crane worked EXCELLENT!