Features: Strong magnetic, which can firmly attach screws, prevent from falling off during work, improve work efficiency, and reduce time waste. The hexagonal socket is elongated type that can easily reach narrow or difficult to reach space, making operations flexible and convenient, suitable for use in various complex environment. This product is suitable for various screwdriver and electric tool, with a wide ranges of applications, making it ideal choice for professional workers and DIY enthusiasts. High-strength steel, ensuring wear resistance and corrosion resistance, providing excellent durability, and extending the service life of tool. The inner hexagonal part is precisions machined to ensures complete fit with the screw, reduce slipping, enhances gripping force, and improve safety during use. Specifications: Material: Steel Dimension: length 45mm/1.77'', outer diameter 12.5mm/0.49'', inner diameter 8mm/0.32'' Package Includes: 5Pcs Magnetic Power Nut Driver note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.