One of the best tool manufacturers on the market and are made to German design engineering standards. This set is ideal for getting into those awkward places that are just impossible to get at with normal sockets. Heat treated and hardened with chrome finish. Supplied on clip-rail. Never be stuck again in a tight unreachable place. These will reach where sockets fear to tread. No tool box is complete without this set. Specification: 8 Feet includes the following. 10, 11, 12, 13, 14, 15, 17, 19 and 22 mm. Socket rail.