Quote:
Originally Posted by mr48chev
I've got a 3 corner file that has almost a knife taper to it that I use to dress threads so that I can get a die on them. I think the file is a Nicholson 14324M that is six inches long and can be found or one quite similar can be found.
I just use the edge of it to dress the threads until I get them to where the die will start on them.
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You can also get a thread file to straighten up the threads. It is a square piece of hardened stock that has many different thread pitches on the sides. You can get 8 different pitches on one file. This is a handy tool to keep around.