The Ko-ken RS4425/7 1/2" Square Drive TORX® Socket Set is expertly designed to meet the demands of various fastening applications. This set features seven essential TORX® socket sizes: E10, E12, E14, E16, E18, E20, and E24, all mounted on a 200mm rail for easy organization and accessibility. Recognized as one of the three most efficient fastening systems, TORX® sockets are engineered to transfer greater torque, reduce load, and virtually eliminate tool slippage, ensuring reliable performance in any task. This set is an excellent addition to any toolbox, providing the versatility and strength needed for both professional and personal projects.