Ko-ken RS3025Z/8-L50 3/8 Sq. Dr. 8 Piece Z-Series TORX® Bit Socket Set (T20-T55). TORX® is known for its efficiency in transferring greater torque, reducing load, and nearly eliminating tool slippage. This set features eight Z-Series TORX® bit sockets in sizes T20, T25, T27, T30, T40, T45, T50, and T55. The 50mm length sockets are mounted on a 200mm rail, offering organized storage and easy access. With a 3/8" drive, these sockets provide durability and high performance for a range of fastening tasks.