E-Z Lok EK50920 Metric Helical Threaded Insert Kit, 304 Stainless Steel, M10-1.25 Thread Size, 20 mm Installed Length (Pack of 10), Black

I ordered the M14-1.5 (1.5D/21mm length) economy kit, but similar to another reviewer, received a kit which contained a different size set. Mine was labeled as ordered, but contained the parts for a 1/2-20 (1D/14mm) kit, which I determined by both tap imprint and comparison both to the bolt to be installed and a thread pitch image from the Bolt Depot fastener tools PDF (make sure to print at 100% scale). Note that you have to stretch the coils to match the pitch image if you want to measure: they do not arrive expanded to length at rated pitch.In the attached image, the left kit is the first received, the right kit is the replacement. Clearly different contents.Since I needed this item for a repair this week and it was out of stock at Amazon, I reached out to E-Z Lok directly to see if they could help. They responded within a few hours and shipped me a replacement kit with the correct items the same day via Next Day Air. They even included a Certificate of Conformance (asserting that the shipped item matched the ordered item).I'm delighted that E-Z Lok stood by their product, and my oil pan is now back in business with a solid thread repair after the drain bolt hole had been stripped during previous ownership: an aftermarket Dorman toggle bolt plug had been there when I bought this vehicle used, and it was starting to leak). This is my second bolt hole repair with E-Z Coil. It's a well-designed product, and with this kind of customer service, I'm a customer for life.

Easy to use just like all helicoil thread repair systems.

The thread-tapping tool fit readily in the thread-tapping handle I already owned (the kit doesn't include that component) and the blue-handled tool made it easy to correctly install the helical insert. And the repair to the housing of my high-speed router is holding well.The final test is how well the helical insert stays in place. But if it doesn't stay put, one can use a thread-locking compound between the insert and housing.

I was happy to find this unicorn of a size available. Other sources charge an arm and leg for this. This wasn't cheap but you have to do what you have to do. A drill bit would have been nice, especially at this price. I had to use a close equivalent wire gauge size drill. Installation went fine, no problems with respect to the functionality of the product itself.

Saved me time and time its really good to have one of this size's in you garage for safety 😜 good quality you get what u paid

I almost made it worst with this kit... Still giving it 5-stars, cuz it was my mistake.I never used one of these before, so after watching number of videos on YouTube, I thought I knew exactly how to do it! What could go wrong you wonder..? Well, when screwing the coil, one of the loops jumped one over for some stupid reason..!! So when I started tightening that bolt, oh man... It was a hell of job, taking that whole thing out... I rethreaded it again and next time I really checked the loops and guess what, same thing happened! After another 2 tries, I was able to get all the threads seating correctly and could complete the job nice and tight!My biggest advice to all! Check the coil after you insert it, before screwing the bolt in!!! Other then that, awesome way to fix stripped threading! Would recommend!

Downvoting because it's basically impossible to get the proper sized drill bit. Why doesn't it just come with??? There is no standard equivalent size.

Wasted 2 before getting it right. Don't lose the end before you can see there's no gap in the tread from you not applying constant pressure while screwing them in so you can pull them out pulling hard on that last bit. Once you get the hang of it you'll do a great job. I don't think the much more expensive alternative will do a better job as this looks solid once inserted properly

Hace su función muy bien

No incluye la broca necesaria, y no pude encontrar que tamaño se necesita antes de comprar. Ya que lo recibí, en la parte de atrás dice que se necesita una broca de 10.3mm que es una medida muy dificil de conseguir, al menos en opciones económicas.