Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer

Firstly, this comes in a metal case, which is very welcome. I’ve used this a few times now and had no problems. The drills have worked absolutely fine, the taps too. No problem fitting the inserts though the tang at the bottom doesn’t always break off when it should, though it’s not caused a problem. So far it has made repairing damaged threads a breeze, the installed inserts have worked great. Last repair was a coolant pipe retaining bolt on an engine. It was quick, easy, the bolt went in first time after the repair was made and no leaks. Highly recommended!

This is a great kit that has pulled me thru some tough repairs on internal threads! There are way more inserts than I will ever use but it’s great knowing I am covered in the instance that I might need one for an emergency! I repaired a few threads in my motorcycle subframe that seem to always be a problem when threading in steel bolts into an aluminum frame! Worked great and saved me from a trip to the dealership for a more expensive repair. I have also used them to install handles on my tractor and made a cue ball shift knob for my car with the inserts. For anyone curious, pool balls need helical insert or the bolts will shatter the threads! Kit comes with the appropriately sized drill bit, helicoil specific Tap (this is not a regular thread sized tap), helicoil Installation tool, and helicoils in several sizes. I Highly suggest this kit to any mechanic or DIY person because sooner or later you will need it!

Work great on my vehicle

To be fair, what I received looked like the main picture. I found 5 (one of each size) of bits, taps, insertion tools, and breaker pins (20 items), and 110 repair coils, 25x(M5,M6,M8,M10) and 10xM12. The front of the box indicates the remaining item should be one hex wrench. Presumably, this means some sort of tap wrench to hold the tap while it's driven into the recently-drilled hole. Overall, it's a good set for the price. Just be aware you'll probably want a tap wrench--or two, since there don't seem to be many that can secure all five sizes. You do want something that will help keep the tap square to the surface while you're cutting new threads. Hopefully the seller rectifies the issue, or at least changes the description. I see that the SAE set also seems to lack a tap wrench, but at least the box doesn't list that you should be getting one.

This is a great product

Good quality for the price! Comes in a METAL case which I will take over plastic any day. The product is very straightforward to use and is very handy! This set includes all the common sizes, making it perfect for stripped soft aluminum threads.

Worked well. Was actually cheaper to buy the giant pack of coils than 3 individually.

Good tool to have just in case! Price is unbeatable!

Great product.

Excelente kit muy completo cuenta con todo para hacer los insertos en números estándar ya me sacó de más de un problema

Thankyou Amazon this thread repair kit is awesome. I am a happy customer.

Las diversas medidas serán muy útiles .

I damaged my cycling shoes cleat thread and was looking for a DIY solution as the shoes is an expensive brand , was not sure of the helicoil fix , i did all the research i need and decided to go for it , i ordered this helicoil kit that includes the M5x0.8 size that am looking for , when received the order i was really impressed with the high quality of the box and the tools included, the helicoil, threading tool , helicoil insert and the helicoil bags that come with each size , i only needed the M5 size but the kit includes multiple helicoil sizes and tools for each size. The procedure i was going to do on the shoe is like a surgical and critical as there is a carbon insole and i need to be very careful while drilling, i was hesitant to start it but then i went for it and did the job. The result is new thread better and stronger than the original thread . Very happy with the result, cleat are back again in place with very tight screw like new .. i recommend this kit for whoever is looking for a thread repair option just research it first and plan your procedure according to the job. One last thing the price of that kit of 48 AED is the cheapest among the online after checking different options, quality wise this is killer kit for someone who is not looking for half solutions… solid 5 stars rating