Features High Hardness Carbon Steel: Made of carbon steel, this hex socket provides exceptional torsion during use, ensuring durability and reliability. Standard Size with Tight Threads: The tightly arranged threads and standard size of the hex socket offer a secure grip, making it suitable for various applications. 78mm Lengthened Design: The extended length design allows for easy installation on electric wrenches or pneumatic drills, providing versatility and convenience. Corrosion-Resistant Coating: Featuring a black phosphate coating, this hex socket is corrosion-resistant, extending its service life for long-term use. Recessed Hex Joint Design: The recessed hex joint design enables the socket to tighten or remove standard hex nuts with ease, enhancing efficiency in various tasks. 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