The DEWALT DWMT81610-0, a comprehensive 50-piece �? drive mechanics tool set combining both metric and imperial components. Specifications Brand : DEWALT Model : DWMT81610-0 Drive : �? drive sockets and accessories Total Pieces : 50 (sockets + ratchet + bits + adapters, etc.) Ratchet : 72-tooth, pear-head, 5� arc swing : Socket Sizes : Metric: 4?14 mm (12 pcs); SAE: 5/32?9/16? (11 pcs) Extensions : 3? and 6? bars Special Features : DirectTorque, knurled grip, chrome finish Storage : Compact molded case