The Ko-ken RS4027/6-L60 1/2" Square Drive Bit Socket Set is a specialized 6-piece collection designed for Ribe-CV screws, featuring sizes M5 to M16. Each bit socket has a length of 60mm, providing the reach and leverage needed for effective fastening. Crafted for precision and durability, these sockets ensure optimal performance when working with Ribe-CV screws. The set is securely mounted on a sturdy 200mm metal rail for easy organization and accessibility. Ideal for professionals, this Ribe-CV bit socket set is an essential addition to any toolbox, ensuring reliable and efficient operation for a variety of applications.