Wax improvements

I think wax should be more useful. Right now it can't do anything so I think it should be used to improve durability. In medieval times wax was used to harden leather, to stop rusting, and to protect bow strings. I think using what in an anvil should reduce the amount of damage a tool takes by 1% and you should be able to do this up to 20 times. However to make sure wax farming doesn't become a one time thing, every time a tool is damaged. The wax should have a 1% chance of going away by one level. This would make wax useful.