Complete automotive and household mechanic jobs with premium quality tools. This mechanic-style set features 121 driver parts of different sizes (1/4", 3/8" and 1/2") coated with a chrome and bronze finish for optimal corrosion resistance. Three (3) 120-tooth ratchet drivers are included to provide better access and minimal arc swing when tightening the fastener. This mechanic's kit also includes anti-slip keys for a grip on fasteners 7 times more powerful compared to traditional keys. The durable, blow-molded case is equipped with removable hinges for easy storage, while each socket has large markings for a quick size identification. This set offers 15 shallow 1/4" sockets, 19 shallow 3/8" sockets, 14 deep 3/8" sockets, 15 shallow 1/2" sockets as well as 11 combination wrenches. Backed by Craftsman's full lifetime warranty.