This Gearwrench 15-Piece 1/2" Drive 6-Point Standard Universal Impact Metric Socket Set (84939N) features a flex socket design that provides more access to fasteners in tight confines.  These sockets are made from chrome molybdenum alloy steel (Cr-Mo) for exceptional strength and durability.  High-visibility laser etched markings provide quick size identification.  The off-corner loading design helps to reduce fastener rounding.  A blow mold case is included for storage and organization.