Do you have a drill bit that's too dull to use? You can sharpen it rather than replacing it if you have a bench grinder, but you'll have to be careful.

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

The other equipment we show, such as files, a drill-bit grinder, and a bench grinder, is stuff you can buy at any home center or online.

Drill bits are so cheap that when one is too chowdered up to keep working, we generally just toss it out. So you might expect a video on sharpening drill bits to be somewhat irrelevant, but [This O… ...

And unlike some comparably priced grinders, the Porter Cable 8-inch bench grinder has a groove in the left-side tool rest that’s angled for sharpening drill bits.