Multipurpose design makes it easy to keep the right tool for just about any job handy. This Ratcheting Screw/Nut Driver Set includes a generous range of precision-ground, sandblasted steel bits and precision-machined, chrome-vanadium steel sockets to ensure accuracy and long-lasting, reliable performance. Reversible driver features a three-position selector switch for clockwise and counterclockwise ratcheting as well as a center lock for standard screw and nut driver performance. Constructed for performance, comfort and durability, the in-line driver features a chrome-vanadium steel shaft, plus an ergonomic, rubberized handle grip to help prevent user fatigue. For added convenience, the set also includes revolver-style bit organizers for keeping six screwdriver bits with you, tucked neatly on the driver's shaft. 34-Piece Set. Ratcheting: Yes; Tip/Socket Type(s): Metric 6-Point; Phillips; SAE 6-Point; SAE Hex; SAE Slotted; Torx; Tip/Socket Size(s): 6-Point Socket: 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 1/4", 5/16", 11/32", 3/8", 7/16", 1/2"; Hex: 1/8", 3/16"; Phillips: #1, #2, #3; Slotted: 3/16", 1/4", 9/32"; Torx: T15, T20, T25; Tip/Socket Material: Chrome Vanadium; Steel.