This versatile, compact, multi-socket nut driver is a handy tool for pocket or pouch. It is designed for the trade professional and offers superior performance, ease of use and long service life . Telescoping driver shafts provide two hex sockets at each end of the handle for a total of four hex sizes, 1/4 in, 5/16 in, 3/8 in, and 7/16 in. The driver shafts can be extended or retracted to produce three different end to end combinations: 1/4 in and 5/16 in; 3/8 in and 5/16 in; and 1/4 in and 7/16 in. A quick-release, positive lock secures telescoping shafts in position and prevents collapsing when forceful in-line pressure is applied during use. Hardened Chrome Vanadium Steel Sockets offer sure fastener engagement and control. The comfortable 3-lobe handle is made of high-torque ABS plastic, and a non-slip TPR over-molded grip offers additional comfort and control on the job.