The Ko-ken RS4300A/10 1/2" Square Drive Socket Set is a comprehensive 10-piece collection designed for deep socket applications. This set includes 6-point deep sockets in sizes 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", and 15/16", all engineered to provide a secure grip and effective torque transfer. Each socket is crafted to meet ANSI standards and is mounted on a 300mm rail for convenient organization and quick access. This deep socket rail set is an essential addition to any toolbox, ensuring you have the right tool for various fastening tasks.