Using my steady rest and collet chuck to hold rifle barrels to thread for muzzle brakes. I install 50+ per year. The problem is the steady rest leaves marks on the barrel. Most of these are finished rifles and I do not want to reblue. My thought was to make the rollers on my steady out of "plastic". Tried UHMW, had some in the shop, didn't work. Anyone have any reccomendations on what to try or use?