Screwdriver socket set with HX profile 1/2" on rail

Set of 1/2" HX screwdriver sockets commonly used in bike service, packed on a handy rail. The screwdriver sockets are made of premium chrome vanadium steel, and the bits are made from premium plus carbon steel. All screwdriver sockets are entirely hardened. The rail enables this set to be neatly stored in a drawer, on a bench, or mounted to a wall/back panel. • material (Socket): Premium flex chrome vanadium steel • material (Bit): Premium plus carbon steel • entirely hardened and tempered • made according to standard DIN 7422