I guess it's a new tool? My oldest daughter bought these for me a couple of Christmas's ago. She is always trying to find me something I don't have, or she thinks it will make my life easier...Love her to death for that, but she does buy somethings that I will never use. I don't want to tell her that, and hurt her feelings. This I never really gave it a chance, but actually works really well, and will be using more often...They are thread cleaners. SAE, and Metric. There is a little wire wheel in the center, I use my cordless impact...and just run it in, and reverse it out. You can hold it in your hand, or like I do...put it in my vice. Doesn't make them pretty, but cleans up the threads like a new bolt.
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