Just registered, I plan on viewing this forum a lot. My first question. What would be the best Dremel tool (attachment) to remove surface rust from some gun parts. Blue scope mounts and SS barrel. Yes, the Stainless Steel barrel is showing signs of rust. Is there a very mild abrasive wheel that might take it off if I was real careful? I have limited attachments now but would be willing to buy if needed. I have some soft felt type wheels and some abrasive sandpaper type wheels, but one seems to soft while the other seems to rough.