The Ko-ken RS3430M/6 3/8" Square Drive Universal Bit Socket Set is a 6-piece collection designed for versatility and convenience in fastening tasks. This set includes hex bit sockets in sizes 5mm, 6mm, 7mm, 8mm, 10mm, and 12mm, all securely mounted on a 150mm rail for easy organization and accessibility. Featuring a universal design with a U joint that allows for a degree of rotation, these sockets can effectively engage with various fasteners, making them essential for a wide range of applications. Engineered for durability and high performance, this universal bit socket set is a valuable addition to any professional toolbox, ensuring reliable and efficient operation in your fastening projects.