Call me thrifty or just call me a skinflint, I can't bear to throw a tool away if I think I can repair it. That may seem obvious with big-ticket machinery, but it may not be worth the hassle on ...

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?

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.