With this in mind, we spent two days testing four popular drill bit sharpeners. We learned a lot by sharpening 100 dull drill bits, including carbon steel, high-speed steel, titanium-coated, and ...

As a professional woodworker, I’d much rather use my tools than sharpen them, but I know dull or broken bits are unavoidable. I’ve had a toolbox filled with old drill bits, so it was past time to do ...