Pumauto 25 Pcs Thread Repair Kit, Stainless M6 x 1mm Thread Repair Insert Kit Compatible Hand Tool Set for Auto Repairing

I used it for an M6 bolt I stripped out in a CVT transmission housing. Worked good. Bolt tightened to correct torque.

I’ve used this product before when fixing threads on my Z32. They work really well in aluminum. I was re-sealing my buddies EJ20 and when I went to put on the crossover pipe, the previous guy snapped the bolt and applied RTV to prevent coolant from leaking so it was only held down with 1 bolt instead of 2. Well I tried everything and couldn’t take it out so I had to drill the bolt out. Once done, used the supplied drill to clean out the threads and then begun tapping. Everything went smoothly from using the drill bit to tapping. Once done, cleaned hole and applied orange locktite to helicoil and installed it. I like to install it a little bit deeper and not flush as it makes it easier for the bolt to catch the threads. Punched the little tab out and waited about 15min before assembling the engine to let the locktite dry. Worked like a charm and would recommend if you’re in a pinch.

Excellent product Everything needed to make the repair, including simple instructions. I would buy this kit again and recommend it highly. I think it’s reasonably priced.

Like how it has everything you need to do the repair

I got three uses out of the installation tool. It woorked well once, and then it failed to release the coil. It snags badly and gets stuck into the hole. They should have used a harder steel to cast it, since the coil easily cuts into the end and gets stuck. I wouldn't dare reuse the tool, but the rest of the kit is okay. Fortunately, it is an easy tool to machine. All in all, we got the job done with the aluminum engine bolt sockets where it was necessary to fix threads.