Greenlee has some interesting fastener-holding drivers. The 6-inch shank, 1/4-inch socket Nut-Holding Nut Driver ($18) has an ingenious taper within its socket that holds nuts tightly without magnets (which can attract filings and clog up the works). A short rap on a hard surface with the nut driver held upside down will lock-wedge a nut into the socket. A quick rap with the socket down will release a stuck nut. With most sheet-metal screws, though, this nut driver works just like any other. Also in the line are flat and Phillips-head Screw-Holding Screwdrivers with a spring-loaded device that holds fasteners very securely. 800-435-0786, www.greenlee.com.