TIME-SERTMetric Kit M12 x 1.5 Part # 1215

I was going to use a Helicoil to repair the stripped threads in my aluminum brake caliper. I gave these a shot on the recommendation of a friend.Overall, the solid steel sleeve is much more robust than the 'springy' helicoil inserts. Additionally, the top of the insert is flanged, giving a beefy stop to pull out. Another perk: The outer diameter of the insert is smaller than helicoils, so if it does fail (seems really unlikely) you can drill it out and start again without losing much material... Helicoils require going quite a bit larger, losing lots of base material every time.As for the kit:I consider myself handy, but certainly not a machinist, and I thought the whole process was pretty straight forward. The kit includes everything you need to drill out, tap, insert, and set the inserts. Includes 5 inserts. If you're really anal, you could add a drop of red Loctite (not included) to the outer insert threads for peace of mind.Great product, will definitely recommend.Product website[...]

Just follow the directions and take your time. I had to switch to an electric drill because the cordless drill wasn't strong enough. The nerve racking part was trying to guess if i was drilling and boring straight but it must have been good enough because i got no oil leaks. I then flushed the crankcase out with diesel oil or kerosene about 10 times using a coffee strainer to filter out the metal particles then running it through again. Then i used a little bit of the red Loctite on the outer threads on the insert. Works great!!

I needed this to fix the control arm mount on my drift e36 and it did the job with ease. Got her back out there.

These saved my bacon. I had to drill out my Brembo caliper on my Subaru WRX STi after the steel bolt decided to take the threads with it on removal. These enabled me to repair the threads and save the $800 caliper. Highly recommended. I didn't even have to take the brake line off or remove the caliper from the car to accomplish the repair. It's easy. Used a 18V Dewalt coreless drill which had plenty of power and a large enough chuck to handle the bit. Just went slow and was careful throughout the process. Never tackled anything like this and it worked perfectly.

I used this kit to repair some M12x1.5 transmission mount threads on a Porsche 911, working under the car on jack stands. Easy to use and gets the job done. I recommend you use the Time Sert tap guide to make sure you start cutting new threads straight and a compact tap handle with the sliding lever. I had no issues repairing a hole with lots of tap handle clearance but I screwed up tapping a second hole because I did not have a lot of tap handle clearance and the threads started cutting at an angle to the hole. Had to step up to a Big Sert kit after that.

Absolutely saved the day. I used this kit to repair the oil drain plug on my 2013 Victory Cross Country. I also purchased the big cert tap guide, which helped considerable. The sleeves included in this kit were too deep for my application so I had to buy a some shorter ones separately. I was incredibly nervous about tapping the engine case on my motorcycle because I knew if I screwed up i'd basically be buying a new engine. I took my time and everything went well with no issues. I'm beyond happy with the results!

I actually bought this for a purpose other than for which it is intended. My son's BMW had some damaged wheel lug sockets on one hub. We could have replaced the hub but I realized this kit would allow us to fix the hub. The kit comes with everything we needed and good instructions (although the instructions are for using it as head bolt socket repair). We were able to drill out and counter sink the damaged holes. Then install the helicoils using permanent threadlocker. Everything worked as it should have. We had the lug bolts holding full torque quickly.I knocked off one star because it would have been nice to have a drill guide to make drilling the hole perfectly straight easier. I was able to make my own with a wood block and drill press but I could have saved the trouble if the kit had included one.

I bought this kit to replace the head bolt threads in the block of an 81 VW rabbit diesel. They were installed almost 2 years ago and are holding strong. Un-known to me until the gasket blew, the previous owner replaced the threads with helicoils. Needless to say, the helicoils gave out and took the threads in the block out so replacing the coil wasn't an option. The Time-sert drill bit was just slightly larger than the helicoil hole which made it fairly easy to clean out the pulled threads once I removed the old coils. Install is fairly easy as long as you follow the included instructions to install with attention to detail. You want to make sure you drill the holes NICE AND STRAIGHT. Obviously if the holes are a little off the bolt heads wont seat correctly in the head holes.