Kobalt’s 1/2-inch drive, 55-piece impact socket set includes 48 SAE and metric, deep and shallow impact sockets, 3 impact extensions, 2 swivel adapters, one drive adapter and one flip socket. All components are constructed from chrome vanadium steel and are heat treated to withstand everyday use in your home garage or professional shop. This set is intended for use with an impact tool to provide maximum installation of heavy duty fasteners. Each components has a pin hole to safely attach to your impact tool and 6-point sockets have a chamfered opening to help guide socket on to the fastener. Size callouts are laser-etched on each socket for easy identification in or out of the blow-molded carrying case. This 1/2-in drive impact socket set contains 24 SAE/metric shallow and deep sockets, 3 extensions, 3 adapters and a flip socket. Constructed from chrome vanadium steel and heat treated for strength and durability with a black-oxide finish. Standard depth impact sockets include 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24 and 27mm as well as 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 and 1-1/16-in. Deep impact sockets include 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24 and 27mm as well as 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 and 1-1/16-in. 1/2-In drive accessory tools include a 3 impact extensions measuring 3-in, 6-in and 10-in, a 1/2-in drive impact swivel adapter, a 3/8-in drive impact swivel adapter, a 1/2×3/8-in impact adapter and a 3/4×13/16-in flip socket. 6-Point sockets help prevent slippage and rounding off your fastener. The set is contained in a large blow-molded case for easy storage and transportation which measures 14.17-in x 20.87-in x 4.33-in and weighs 26.10 pounds.