The Ko-ken RS3425/9 3/8" Square Drive TORX® Socket Set is a 9-piece collection designed for superior fastening performance. This set includes TORX® sockets in sizes E4, E5, E6, E7, E8, E10, E12, E14, and E16, all securely mounted on a 200mm rail for easy organization and accessibility. Recognized for their efficiency, 3/8 Sq. Dr. 9 Piece TORX® Socket Set E4-E16