Features:

  • Drilling - clear the damaged threads with a standard drill. (to repair a spark plug thread no pre-drilling is necessary if using the special spark plug tap), please pay attention that for fluteless taps bigger holes are required.
  • Checking - check that the thread and pitch of the tap and the bolt match.
  • Tapping - use the special taps for cutting the holding thread into the cleared hole (recommended to use a suitable cutting oil).
  • Install the insert - place insert on installation tool and position the adjustable ring so that the insert tang is centered in the tang slot. Wind the insert in with a light downward pressure until a half turn below the surface. Don't work against the thread direction as the tang could break.
  • Tang removal - After finishing lift the installation tool and use the tang break tool to remove the tang. For bigger sizes and spark plug taps use long nose pliers to remove the tang. Due to the narrow and exact tolerances the new thread normally is stronger than the original ones.
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Just a perfect solutions to the problem

Reliable, Great Value!

I've used a lot of different thread insert kits, and this is as good as the best of them. It's also a great value, which many others are not. The photo is a Rocaris insert that I put into a Delrin camera part that I was making. I bought this kit for that purpose--to reinforce the plastic component, and it did just that--no problems. I noticed that some of the other kits do not have all the needed tools. This one does. I would buy this brand again.

Easiest fix in a long time.

After living without an antenna on my '02 Tacoma for years, I decided it was time and this kit was the key because the threads that a new antenna needed to be screwed into were gone, literally. Music was playing within 15 minutes! The only surprise was there was no handle for the tap, which is used to create the new threads. I wasn't concerned with it being perfectly vertical so I just went slowly and used pliers but you might want to make sure you have the right tool on your job. The kit doesn't come with instructions but everything you need to know is here, in the description. If you have questions, I'll be in the truck with the annoying music blaring!

Quality

Exactly as described, fast delivery on a Sunday

Works as well as more expensive thread repair systems

Had no issues with the tools or process - I've used genuine Helicoil® inserts and tools before, and I see no functional difference with these lower-priced systems. A good value IMHO.

Good

Good service and good product

a fine tool for thread repair

I ordered this kit to repair some threads that pulled from an expensive part on a Mercedes. I was quickly able to repair the part and continue using it with this kit! The thread repair was easy to perform and worked flawlessly. this kit is complete with all of the tools you need to do the repair. I will look to order other sizes as needed, these are quick and easy to use.

Does what it should

Did what it's supposed to do. Had to replace all the center cap screws for my aluminum wheels on my jeep and all the threads stripped out. These fixed that problem. Took forever but that's no fault of this product.

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