131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"

Although I haven't had to repair many threads or use many inserts over the years, these arrived very timely, and I got right to work with them. I installed two of them in an aluminum transmission case, took maybe 10 minutes each. The drill bit cut right through the metal, as did the tap. The insert, dabbed with a bit of sealer screwed in with minimal effort. Probably my only gripe is that no drivers for the taps are included with the set, and the larger sizes take a larger driver than the ones I had on hand. Still, a very good value for the assortment of decent quality tools and inserts.

this kit was complete and worked perfectly to repair my 7/16 threads on my transmission mount. I'm Sure the other sizes will work just as well.

These come in very handy

Very happy with this kit. Use it all the time I would buy again.

Worked great. Very impressed.

These are great to have on hand and work great.

First off out of the package the 1/4 inch driver missing slot to turn in the coil, not a good start.When I tried using the 5/16 the slot actually broke off when I was turning the coil in. OMG what a nightmare that was. Definitely would not recommend this. If the tools we're properly hardened and there wasn't a quality control issue then the packaging and everything else was nice. Although for the life of me I can't figure out why they paint the SAE tap sets blue and the Metric ones Red????

I’m a mobile small engine repair man this set is a lifesaver!