Stahlwille 10 piece Bi-Hexagon socket set. The sockets are made from HPQ® high performance quality steel and chrome plated. HPQ® sockets are free of cadmium and are therefore suitable for use on titanium alloy parts and titanium fasteners as used for example in the aerospace industry, where safety is a crucial factor. Equipped with an anti-slip (AS) drive, the sockets permit high transmission of forces to the lands of the nuts and bolts without damaging them. Manufactured to ASME B 107.1, Fed. Spec. GGG-W-641, SAE AS 954-E (test loads). The set contains the following:1 x Each of the following size sockets: 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 7/16, 1/2 and 9/16in AF.1 x Clip-strip (300mm). MADE IN GERMANY.