Manufactured from heat treated, drop-forged, Chrome Vanadium steel with chrome plating for corrosion resistance. Wall Drive® sockets grip the flats of the fixing, giving maximum torque transfer. Flip reverse ratchet with quick release. Supplied in heavy-duty metal storage case. Contents: 1" Sq Drive Wall Drive® Sockets; 36, 38, 41, 46, 50, 54, 55, 58, 60, 63, 65, 67, 70, 71, 75, 77, 80mm. Extension Bars; 200, 400mm. Universal Handle, Sliding Head, 1" Sq Drive Flip Reverse Quick Release Ratchet Head. Model No. AK261