u/Hot-Ear-1128

Hello, I'm still a little confused. How do I polish a piece of copper, brass or tin jewelry to a mirror shine? I read that sandpaper with different grades is used or colored sanding pastes. What would you advise me? What is the procedure? I use a Dremel for grinding and polishing. Is it true that for perfect polishing, first use felt, then cloth and finally a cotton attachment? Thank you very much for your advice