NON-STICK EQUALS NICER FINISH
I find that when machining some valve seats my cutter will get a build up and give a poor finish. I use a small knife to scrape the cutter clean, than I smear PAM (non-stick spray) on the seat and the cutter for the last .002” cut. It helps the finish on high- chrome alloy seats.

Randy Torvinen
Torvenin’s Machine
Menahga, MN
March, 2014