I've been thinking about buying one of these but I don't know if they are just a gimmick. Also, if they genuinely work well how good do your bits need to be in the first place to be worth sharpening?

If your drill bits no longer work like they used to, a drill bit sharpener can bring back their edge. Whether you work with wood, metal, or plastic, sharp tools work faster and more precisely than ...

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 ...