You can always sharpen the drill bit by hand. If not, another way to restore that cutting edge is to use a bench grinder. Bench grinders are one of the most high-maintenance power tools.

A bench grinder is all you need to turn rusty old hardened-steel tools, like cold chisels and punches, into useable workhorses.

Both new and used chisels need to be sharpened in order for them to work properly. This primer provides a thorough run-through of one way to sharpen chisels using a grinder, a set of Norton ...