Quoted from Murphdom:Thanks for all the tips I will have to try them to see what I find works best. So out of sheer convenience today I tried using my 9 year old sons rock tumbler from harbor freight with corn cob media on some metal posts and screws since I am working on a machine that is older and has a ton of metal posts. It worked amazing after only a couple of hours and it gave a mirror finish with just the media by itself. I will try adding a polishing compound later to see if I get an even better result. I would have tried walnut media because I have read that it’s even better but my son is allergic to nuts and I didn’t want to take any chances. Now to the coin door, coin plate, and shooting rod with all your advice. Thanks again
Did you turn that thing loose on some feldspar?