General description This Teng M381230-C TPX30 TORX Pinned (Security) Socket Bit is designed for manual work, providing a secure grip for tightening or loosening fasteners. Made from chrome vanadium steel with a matte finish, it ensures strength and durability while minimizing torque loss during use. Technical specifications Model: M381230-C Material: Chrome vanadium steel Finish: Matte chrome Size: 5.5 mm (TPX30) Overall Length: 49.5 mm Socket length 1 (L1): 49.5 mm Socket length 2 (L2): 23.0 mm Diameter (D): 17.9 mm Compatibility and accessories Compatible with tools and accessories designed for 3/8" drive systems Suitable for use with TX-system sockets, including those with central pins Installation Insert the socket onto a compatible 3/8" drive ratchet or wrench Ensure the socket is securely attached before use Usage Use for manual tightening or loosening of fasteners with a 5.5 mm hex head Ideal for DIY, home improvement, and professional mechanical tasks