This versatile telescoping socket driver works with all your 1/4 in. drive sockets to replace an entire nut driver set in your toolbox. The telescoping shaft extends from 7-5/8 in. to 12-11/16 in. to accommodate a variety of tasks and features a 1/4 in. end cap for additional torque. Constructed of heavy duty chrome vanadium for added durability, this is a great socket driver for the do-it-yourselfer and professional contractor alike.