Lots of people recommend Renaissance Wax which is expensive but supposed to got a long way. I started with Johnson's paste wax back in the mid '60's as a way to prevent rust on my guns and it has done an excellent job on both wood and metal so I have stuck with what I know works. Although Johnson's has discontinued it's production it's still available on Amazon at a reasonable price and for enough to do you for a long, long time. Trewax also makes about the same product for just a little more money. My guns on both wood and metal, milling/drilling machine table, table saw table, any metal surface I use and don't want to rust or wood I want to stay in good condition gets a coat of Johnson's wax.