Steelman 55402 20-Piece Extendable Double Drive 3/8-inch Ratchet Set 20-Piece set includes dual gear and extendable ratchet, 6 universal sockets, 12 hex bits, and a 1/4-inch 6-point hex bit socket Dual gearing mechanism engages as handle is rotated and drives 2x faster than a standard ratchet Extendable handle provides more leverage to loosen fasteners when needed Universal drive sockets work on 8 different types of fasteners: 6 and 12-point SAE and metric, Spline, Star, Square and even on mostly rounded 6 universal sockets: 8mm - 5/16-inch, 10mm - 3/8-inch, 11mm - 7/16-inch, 13mm - 1/2-inch, 14mm - 9/16-inch, 16mm - 5/8-inch Bit set contains Phillips sizes PH1, PH2, and PH3; Torx sizes T8, T10, T15, and T20; Square sizes S1, S2; and Slotted sizes 1/8-inch, 3/16-inch, 1/4-inch Set includes a socket storage tray and size labelled hex bit storage case