These are some polishing bars, the green is the left most one, a heavy cut but more suited for stainless steel. The pink is also for stainless. There is a brown heavy cut I don't have that would be better than the green or the medium to start with. Guess I will just hand sand to a finer grit and try to get by without it. The medium removed 320 grit from the steering knuckes ok, all done on 8" wheels, that was easier to safely apply heavy pressure, but the bell has more hard to reach areas th