Manufactured from hardened and tempered Chrome Molybdenum steel with a manganese phosphate finish for resistance to corrosion. 3/8"Sq drive impact spline socket bits with an additional locking 1/2"Sq drive quick change adaptor. Supplied in an EVA storage tray. Features & Benefits:Manufactured from hardened and tempered Chrome Molybdenum steel with a manganese phosphate finish for resistance to corrosion.3/8"Sq Drive impact spline socket bits with an additional locking 1/2"Sq drive quick change adaptor.Contents: 3/8"Sq Drive Sockets; M6, M8, M10, M12, M14, M16, M18, 1/2"Sq Drive Quick Change Adaptor. Supplied in an EVA storage tray.Lifetime guarantee*.Model No. AK5622 Specifications: Model No AK5622 Brand: Premier Contents: 3/8"Sq Drive Sockets; M6, M8, M10, M12, M14, M16, M18, 1/2"Sq Drive Quick Change Adaptor Nett Weight: 0.545kg