OK, well, this seems like the best section because this is a metal working question. My motor (electric) has a 43/64 drive shaft. I need to get it down by 3/64 for 5/8 to be a standard size. I don't have a lathe, so I'm thinking my best bet is to just mount in a vice or something and spin it up and hold some sandpaper against it. Does anyone have any other ideas? Hopefully some better ones?