How do you polish aluminum diamond plate? Bryce takes us through a quick clean up and polishing of this aluminum diamond plate. This process is not designed in this particular clip to get the aluminum diamond plate to a truck show status. It’s simply a way of quickly and efficiently getting the diamond plate reconditioned so that it looks and feels substantially better. Our set an airway wheel has a 320/400 grit pattern that helps efficiently, illuminate, tarnish and brightening. This should be