When you’re grinding Titanium valves, if you want a super shiny finish, grind them with the green wheel and “Mirror finish”. Wipe them off before pulling them from the chuck and give them 30 seconds of spinning with a microfiber towel and some Mother’s polish. Wipe them down with a clean towel and they’ll shine up like chrome. I often polish up the whole face and backside too.
Ron Flood
Cedar Machine
North Branch, MN