JoyTube 35 Pcs Thread Repair Kit, Stainless M6 x 1mm Thread Repair Insert Kit Compatible Hand Tool Set for Auto Repairing

Just have to be a little careful how you put it in but they go in pretty easy and they work well

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

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.

I broke off the drill bit inside my project and I contacted these guys and they sent me 2 free replacements! Thats great! Other than that the tool worked brilliantly and the repair is still holding up great. I wish the thread cutter die was more intuitive as I found it hard to use. It didnt work out in the drill so I found a way to hand turn it to cut. A little bit of cutting oil in the package and a more intuitive hand turn tool for the cutter die would make it more than perfect. And for the price it cannot be beat. I will always support sellers who stand behind their products and send out replacements when stuff goes wrong.

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.

The kit I bought was for M8 1.25 thread pitch. It did the job perfectly at less than 1/3 the cost of a Helicoil brand insert. More inserts with it as well.I see some negative reviews & as far as I can tell, most of their issues were user error. There are 3 common metric thread pitches - so along with needing the correct size, it has to be the correct pitch. If either is incorrect it won't work! The directions (yes, I lost my man card by reading them) even says to try screwing the bolt into an insert to make sure it's correct - do it!Additionally, make sure that chips are removed at each step. After drilling, blow out the hole with compressed air or some carb cleaner. After tapping, do the same. Also - when tapping, use correct technique: start the tap by turning in a couple of turns. Then after that, turn the tap in 1/2 turn, back it out 1/2 turn, turn in a full turn, back 1/2, etc. This clears the chips out of the threads & ensures that they are cut correctly & smoothly.The tap included with the kit has a 1/4" square end. This means that you can use a 1/4" socket extension if the hole is too far behind stuff to get to easily. Best to use a T handle from a tap & dies set so you can apply pressure evenly & keep the tap straight. Using a wrench makes it easy to get the tap out of correct alignment - which will make bad threads.Hope this helps folks who haven't done this sort of repair before.

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.

Funciona bien , aguanta muy bien un torque alto