Thread repair file

[Moby Duck]

If all you use the thread files for is cleaning up threads, but I also use one for doing checkering on steel parts, like safeties and bolt handles on firearms. Works real well, once you get the hang of it. It's not bad on hard woods, either!

Had a shoebox of these for more than 40 years and only rarely used any of them. So rarely that I just left them behind when I retired. Now I am broken hearted. Why didn't I think of checkering?

[madokie]

Isn't the internal thread repair tool called a tap ?

not always , there are time u DONT want to use a regular tap as they remove TOO much metal , a prime example is the cylinder head bolt holes, most of the time u just want to clean them out,, NOT remove ANY metal,,ARP makes thread chasing "taps",they are just slightly smaller than a regular tap and remove almost no metal,,u can clean out the bolt hole AND confirm the threads are straight and good,,

[baja]

I`ve had one of these for years, without the internal chasers, and it saved me when I had to clean up the threads on a faucet that had bunged-up threads where the hose screwed on. It was too big a deal to replace the faucet.