Versatile Tool: This 9/16 inch (14mm) power nut driver comes with a hollow socket and a 1/4 inch hex shank, perfectly accommodating hex nuts and long bolts up to 12 inches. Ideal for fastening tasks, it enhances efficiency in construction and overhead applications. Built to Last: Constructed from high-carbon steel, our power nut driver is heat-treated for durability and resistance to rust and wear. Its robust build guarantees a long service life and consistent performance under rigorous conditions in construction environments. Efficient Fastening: Designed for ease with long bolts, studs, and threaded rods, this tool reduces manual threading time significantly. It's perfect for speeding up overhead fastening tasks, making it a valuable addition to your toolkit for efficient operations. Enhanced Reach: The extended hollow shaft of our nut driver allows for the passage of long bolts and threaded rods, providing superior accessibility in difficult-to-reach areas. This feature is especially useful for installations in ceilings or ductwork. Automated Fastening Compatibility: Equipped with a 1/4 inch hex connector, this nut driver works seamlessly with impact and drill drivers for automated fastening. A fixed rubber ring ensures a secure grip, while the smooth inner wall of the socket prevents damage to threads during use. Colour:black Material:Metal Package Contents: 1 * Power Nut Driver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.