Ko-ken RS3025/8-L100R 3/8" Sq. Dr. 8-Piece Round Shank TORX® Bit Socket Set includes sizes T20, T25, T27, T30, T40, T45, T50, and T55. With 100mm long sockets mounted on a 200mm rail, this set is designed to handle high-torque applications efficiently. The TORX® design enhances torque transfer and minimizes tool slippage, making it one of the most effective fastening systems available. This set offers a secure fit for a wide range of fasteners, ensuring durability and precision in your work.