The Ko-ken RS4025/9-L60 1/2" Square Drive Bit Socket Set is a high-quality 9-piece collection featuring TORX® sockets designed for optimal fastening performance. This set includes sockets ranging from T20 to T60, providing a comprehensive selection for various applications. Recognized as one of the most efficient fastening systems, the TORX® design facilitates superior torque transfer, reduces load, and virtually eliminates tool slippage. Each socket is conveniently mounted on a robust 250mm rail, ensuring easy organization and accessibility. Engineered for reliability and durability, this TORX® bit socket set is an essential tool for professionals, ensuring effective and efficient performance in demanding tasks.