Harbor freight 8" buffing wheel and some rouge. Wasn't a shiny spot on any of my aluminum, a few hours later and bam. Spent maybe 25 bucks on it all. Don't have a buffer, hf has one for 40 bucks as well. 3500 rpm set it on high and there you go. It doesn't come with a nut or backing plate so I also bought a buffer backing plate that had a washer and nut