Crescent CTK70MP 1/4 in & 3/8 in Drive Standard SAE/Metric Mechanics Tool Set, 70-PieceModel No: CTK70MP. This set is ideal for residential and commercial applications. It includes a 3/8" and 1/4" drive ratchet with 1/4" and 3/8" x 3" extensions, 32 SAE and metric sockets, an 8-piece SAE hex key set, 23 SAE and metric combinations wrenches, and a multi-bit DuraDriver™ screwdriver with 12 bits. The tools are organized and protected by a high impact plastic case. Nickel chrome plated for long lasting protection. Chrome vanadium steel. Mirror polish finish. Sockets feature Surface Drive® technology to virtually eliminate fastener rounding. Large quick-release button for easy operation. 60-tooth ratchet requires only a 5° swing. All tools meet ANSI/ASME specifications.