If you've ever priced a right-angle screw gun, you know it's a lot of money for a tool most of us won't use very often. Fortunately, all of those hex-drive bits fit snugly into a 1⁄4" socket, meaning the ratchet you probably already own serves as a solid substitute when you need to drive a screw in a tight spot.—Robert Erwin, North Port, Fla.