Oh my, oh my! This tool care wax is an amazing rust preventative. This is what we use as a finish on each and every one of our tools, and most of our artwork.
The ingredients are beeswax, and linseed oil. Simple enough, yet sustainable.
It's easy to apply too! Just rub the bar of wax all over your freshly cleaned tool. Handle too! and carefully rub in with your hand. Buff off with an old cloth.
The bar will last at least 60 hand tools. I have one I'm currently using, and I've used it for 3 large rake heads and 50 hand tools. It's still going strong.