Features Double Ended Design Maximizes Versatility - Experience dual functionality with a single tool, allowing for multiple uses while saving space in your toolbox Enhanced Durability and Features: 1、The hex socket is made of carbon steel, which has high hardn and can provide greater torsion when used. 2、The size of the hex socket is standard, and the threads are tightly arranged, which can provide a tight grip. 3、The 78mm lengthened design can be easily installed on an electric wrench or pneumatic drill. 4、The has a black phosphate coating, which is ？resistant and can extend the service life of the socket. 5、The socket has reced hex joint design, which is used to tighten or remove standard hex nuts. Specification: Item Type: Hex Socket Hex Socket Size: Approx. 22mm / 0.87in, 2m / 0.9in, 24mm / 0.94in, 27mm / 1.1in, 30mm / 1.2in Material: Carbon steel Total Length: Approx. 78mm / 3.1in (allowable error of machinery manufacturing ± m / 0.1in) Purpose: Suitable for hex nuts Package List: 1 x Hex Socket Package List 1 x Hex Socket