XT AUTO 30pcs Stainless Steel M8 x 1.25mm Thread Repair Insert Kit Compatible Hand Tool Set for Auto Repairing

Had a bolt for my oil filter cover on my motorcycle get stripped out because I tightened it like a cavemen. Performed oil change, went to torque bolt but it kept spinning in its hole. My buttcheeks clenched in terror as I realized I may have a serious issue with my beloved machine, caused by mine own hands. Being the neanderthal that I am, I figured I could push the screwdriver harder to force the bolt to bite onto some threads. After actually accomplishing this, I puffed out my chest as man defeated stupid metal, and went to turn bike on to cycle fresh oil. Immediately after starting, the bolt gave way and precious liquid gold started spraying from the oil filter cover like an actress on onlyfans. I immediately killed the engine and reclenched my buttcheeks. If a piece of coal had been between them, surely a diamond wouldve been formed from the immense pressure. Knowing I had just potentially harmed my two wheeled goddess, I removed the other bolt from the filter cover and let the oil drain slowly from the filter housing, much like my tears. At this point I knew I was knee deep in the stuff. The bolt hole I had stripped was a mere 5mm from the filter housing, and on the edge of my engine case. A very sticky situation. I could try and tap and die to put in an M6 bolt, or I could try and rethread this one and use the magical helicoil. After conversing with some more mechanically inclined friends, I decided to go with the helicoil. The helicoils arrived (quickly) and I knew it was now or never. Get the damn thing fixed or be prepared to sacrifice some of that non-thiccc engine case to tap and die. After reading the instructions about 10 times, watching a couple videos to ensure I was properly prepared to perform repair, I went to the garage. My sweet, dear, currently crippled motorcycle say a couple inches off the ground on stands, the horizontal operating table ready for business. Then I installed the helicoil per directions. It was super easy and it worked like a charm. Bolt has held for about 600 miles so far next to an engine that puts out over 150hp and 110 ft lbs of torque to the rear, and is driven like it is stolen constantly. It was honestly very easy to do, felt very not good / comfortable reaming into my engine case, but it wasnt bad. Thanks XT AUTO for the affordable and effective solution to my problem.

Used these to fix some threads on an Audi 2.0 tfsi engine. Works great and has held just fine with the recommended torque specs Audi requires.

The quality materials are no far from others, they do the job.. Now with that being said. Don't expect that any tool automatically adapt to your requirements. This is not the exception and because I want you to save time and money.. This is what you should do: in blind holes you need a bottoming tap, no provided. Only because it would add more cost! You have to know how to sacrifice a tool and modify it. In my case I had to grind like 2mm of the plug, also had to cut a few rings or the helicoil insert, even more I had to grind both, the driving tool and the tab braking tool. Making them of less diameter allow me to pull out the tool ease a so with braking the tab. I understand, that with a open through hole I probably wouldn't needed to do all that, but also I could've expand the holes in the material, but I decided to be the tools what to modify. I was working on a sensitive aluminum part?. The result was excellent! People damaging the work piece, should stay away from tools at all! Lol. This are tools after modification, which still work for future applications!

Well rounded kit for everything you need to get the job done other than the tap handle

Unlike what other reviews have said these work perfect and gave me no issues, as long as u use them correctly u won't have any problem. The drill bit was nice and sharp, tap worked flawless and even the threaded inserts went in and worked perfectly without any issues. As long as u take your time and don't force things u won't have a problem, I repaired 3 valve cover bolts with these that a previous person damaged and it couldn't have went any easier. This is most definitely a good purchase specially when the name brand costs way more money and doesn't even come a drill bit anymore let alone half of the tools needed to make install a easy, this has it all.

Worked great for repairing a stripped thread on an aluminum engine block and was able to torque it to spec.

Having used many helicoils in my life I am well versed in proper use. While this kit does give you many coils to use, which is a good value, I highly doubt that the installation tool provided is going to last for more than 5 or so. The metal of the tool is soft and bent a little on my first install. Ultimately I repaired what I needed to repair, but 'you get what you pay for' certainly applies here. If you have not used these before, get a higher quality kit. If you are a mechanical and or machining pro you can get away with this kit with knowledge and care.

I really liked the price point for the complete set. It worked perfect for fixing the threads an exhaust manifold. The twist drill bits, wrench, thread tap and breaking pin tool worked as well as can be expected for a product cost $10.14. I drilled out and tapped both bolt holes on the cast iron exhaust and the drill bit and thread tap did not appear to suffer any wear or damage. I made the choice to purchased Nitronic 60 Stainless Steel 9mm Thread Inserts from McMaster-Carr. However, I am sure the 304 stainless steel ones that came with the set would have worked fine. I certainly recommend purchasing this set, especially if it won't be used on a daily basis.

Worked for me on an aluminum valve cover, ignition coil hold down bolt hole. Just be really careful when drilling aluminum not to go any deeper than the original hole ( use a toothpick or something as a gauge and mark the bits with good tape for a depth guide) ,because over doing it is really easy to do. Then when tapping be careful to stop when deep enough, you don't want to botton out in a blind hole and ruin the threads you just ran. It's a nice feeling to know these new stainless steel threads are stronger than the original aluminum ones ,that i stupidly stripped. Watched 4-5 youtube videos on helicoils. I wouldn't run a tap with a drill though, no way.

Worked perfect on aluminum, havent tried on steel yet.

I was forced to redo a head on an ATV because someone doesn’t know what torque specifications are. These worked out amazing. Head is back on, torqued properly. Coils are holding strong. I used a bit to permanent thread lock for extra security. Should hold out longer than the ATV.

Works great !! This is my second set as I use these constantly on used parts I'm fixing.

Had to make my own inserting tool