A workman is only as good as his tools. At least that's how the saying goes. When it comes to such workmanship, nothing kills a workflow like a dull drill bit. They are cornerstones of any good garage ...

Dull drill bits are not usually a type of tool that's worth buying used, unless you can sharpen them yourself. Many companies that sharpen drill bits use precision grinding machines, but there are ...

We may receive a commission on purchases made from links. You can tell a dull drill bit more or less immediately. If you're drilling wood, you'll likely see thin wisps of smoke as it starts to burn.