This article was taken from the March 2015 issue of WIRED magazine. Be the first to read WIRED's articles in print before they're posted online, and get your hands on loads of additional content by ...

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?

Instead of pulling out that pocket knife for some swish-swish sharpening, stick this contraption onto an electric drill and sharpen away. Such is the joy and fun of this new drill sharpener from C.H.