I was over to the local tool store over the holidays and there’s a gadget for sale there called a “die grinder”. What would this gadget be used for? The only die I can think of is from the “tap and die” duo, you know the things you use if you want to cut pipe threads on bare pipe, the die used for cutting external threads I think. I don’t see a reason why I’d want to grind that kind of die. Either it cuts the threads or it doesn’t. I can’t see that grinding on it would help.
I know I’m showing my ignorance. What else is new? So help me out. A 'lil Car Talk education please? What the heck is a die grinder and what would motivate someone to want to grind on a die anyways?