Features: Superior Strength: Constructed from high-strength steel with a hardness of HRC62, ensuring excellent impacts resistance and long-lasting use. Increased Rotational Force: Delivers over 800units of rotational force, improving screw-driving efficiency by 50% and reducing user effort during operate. durability Build: Engineered for demanding tasks with a 99% increase in durability, reducing wear and replacement costs for both industrial and home applications. Standard Handle Design: Features a common 6.35mm (1/4in) handle, suitable for various electric tools and drills for smooth tool changes. Secure Grip: Designed for firm hold, preventing slippage and enhancing safety in detailed manufacturing and assembly tasks. Specifications: Component: steel Features: Hardness up to HRC62, excellent impacts resistance Hexagonal shank:6.35mm Option Length:Approx.25mm/0.98in,50mm/1.97in,65mm/2.56in, 70mm/2.76in, 150mm/5.91in, 90mm/3.54inch; Suitable for electric screwdrivers, electric drills and other tool Package Includes: 1pc Hexagonal Handle Screwdriver Bit note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.