The Ko-ken RS2305M/12 is a 12-piece 1/4" Sq. Dr. 12-Point Metric Socket Set designed for precision and reliability. This set includes metric sockets in sizes 4, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 mm. Each socket features a 12-point design for enhanced grip and torque application. The set is mounted on a 200mm rail, keeping your sockets organized and readily accessible.