The Ko-ken RS4425/6-N 1/2" Square Drive Low Profile TORX® Socket Set is designed for precision fastening of nuts and low-profile bolts, featuring a shallow chamfer on the socket opening for improved accessibility. This set includes six essential sizes: E10N, E12N, E14N, E16N, E18N, and E20N, all securely mounted on a 200mm rail. TORX® sockets are recognized as one of the three most efficient fastening systems, renowned for their ability to transfer greater torque, reduce load, and virtually eliminate tool slippage. This set is ideal for specific applications such as the flywheel bolt MR20 for Nissan (4425-E20N), cam sprocket FA20 for Toyota/Subaru (4425-E16N), and connecting rod bolt FA20 for Toyota/Subaru (4425-E14N), making it a valuable addition to any toolbox for professionals and enthusiasts alike.