This mechanic-style set features 24 metric 1/4" nano parts for all your household and automotive needs. Each socket has large markings for a quick size identification. The 72-tooth ratchet offers minimal arc swing when fastening, while the hex sockets offer increased torque with the fastener. The key and sockets are covered with a fully polished chrome finish for superior corrosion resistance. Moreover, a compact storage case makes it easy to transport tools and gives them an exceptional durability. In addition to the ratchet driver, the kit includes SAE 1/4" shallow sockets (4, 5, 6, 7, 8, 9, 10, 11, 12, 13 mm), a 1/4"x 6" driver extension bar, a 1/4" driver bit adapter and 11 specialty bits (star-shape, crosstip, hex). This set comes with Craftsman's full lifetime warranty.