I have two 10" Hardi-Plank blades that are very rusty from having been outside on a job site (I know---this is not exactly a woodworking question but I figured that people here will know the answer).
The blades are diamond tipped and seem to cut well even when rusty. However, I would like to clean them off and prevent any (further) damage.
Any advice on this? My plan was to work on them with steel wool and then coat them with some sort of a wax to prevent future rust buildup while the blades are sitting in my shop.
bob