The Ko-ken RS3440M/8 3/8" Square Drive Universal Socket Set is an 8-piece collection designed for versatility and efficiency in various fastening applications. This set includes 6-point universal sockets in sizes 8mm, 10mm, 11mm, 12mm, 13mm, 14mm, 17mm, and 19mm, all securely mounted on a 200mm rail for easy organization and access. Featuring a universal design with a U joint that allows for a degree of rotation, these sockets can accommodate a variety of fasteners at different angles, making them ideal for diverse tasks. Engineered for durability and reliable performance, this universal socket set is a valuable addition to any professional toolbox, ensuring effective and efficient operation in your fastening projects.