Features High Durability Construction: Crafted from premium carbon steel, this extended hex socket offers exceptional hardness and torsion strength for reliable performance in tough tasks Corrosion-Resistant Finish: The black phosphate coating enhances durability, providing a resistant hex socket that withstands wear and tear, ensuring longevity in your toolbox Versatile Compatibility: Designed for use with electric drills, pneumatic drills, torsion wrenches, and ratchet wrenches, making it an essential addition to your hardware tools collection User-Friendly Design: Featuring a professional structure that simplifies operation, this 300mm hex socket allows for easy handling and efficient use in various applications Optimized for Performance: With precise forging techniques, this hex socket delivers superior torque transfer, ensuring that you can tackle any job with confidence and ease Features: 1、After accurate forging of carbon steel, the hex socket posses high hardn and strong torsion. 2、The product is coated with black phosphate, which makes the socket ？resistant. 3、The product posses wide applications to electric drills, pneumatic drills, torsion wrenches, ratchet wrenches, etc. 4、 material can make sure the durability and stability of the product. 5、With profional design and reasonable structure, the tool is easy to use and operate. Specification: Item Type: Extended Hex Socket Product Material: Carbon steel Product Length: Approx. 300mm / 11.8in (Allowable error of machinery manufacturing ±5mm) Product Use: Suitable for hex nuts Package List: 1 x Socket Package List 1 x Socket