Features High Hardness Carbon Steel: Made of carbon steel, this hex socket offers high hardness, providing greater torsion for efficient use. Standard Size with Tight Threads: The standard size and tightly arranged threads ensure a secure grip for reliable performance. Extended 78mm Length: The lengthened design allows easy installation on electric wrenches or pneumatic drills, enhancing versatility. Corrosion-Resistant Coating: Featuring a black phosphate coating, the surface is corrosion-resistant, extending the socket's service life. Recessed Hex Joint Design: The recessed hex joint design enables easy tightening or removal of standard hex nuts, ensuring convenience and ease of use. Features: 1. The hex socket is made of carbon steel, which has high hardness 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 surface has a black phosphate coating, which is corrosion‑resistant and can extend the service life of the socket. 5. The socket has recessed 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, 23mm / 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 ± 3mm / 0.1in) Purpose: Suitable for hex nuts Package List: 1 x Hex Socket Package List 1 x Hex Socket