Originally Posted by
Mike Holbrook
Highland Woodworking sells a wax/coating that I have used for years on metal surfaces, protects & lubricates:
"Renaissance Wax was originally developed in association with the British Museum for restoration and protection of art treasures, and is a superb micro-crystalline polish ideal for use in the shop. Renaissance Wax is our all-time favorite coating for reducing friction, preventing rust and corrosion, and putting a shine on anything that needs it."
It is expensive but it only takes a very small amount. A can can coat countless tools.