The Ko-ken RS4010A/10-L60 1/2" Square Drive Bit Socket Set is an essential 10-piece collection designed for versatility and convenience in fastening tasks. This set includes hex bit sockets ranging from 3/16" to 3/4", providing a comprehensive range of sizes to tackle various applications. Each bit socket measures 60mm in length and is securely mounted on a 300mm rail for organized storage and quick access. Crafted for durability and performance, this bit socket set is perfect for professionals and enthusiasts alike, ensuring reliable operation and efficiency in every project.