Description: 【Quality Construction】: The screwdriver drill bit set is crafted from quality carbon steel, designed to withstand heavy duty use, ensuring long term performance and reliability for both DIY enthusiasts and professional tradespeople 【Enhanced Grip】: These cross driver bits featuring a unique anti slip design with magnetic positioning, provide a security grip on screws, reducing the risk of slipping and improving precision during use 【Versatile Compatibility】: Ideal for use with power screwdrivers and impact drills, this set is great for a wide range of applications, making it an essential addition to any toolkit 【Efficient Design】: The threaded design of the screwdriver bits ensures optimal twist transfer and efficient energy usage, allowing you to complete tasks more quickly and effectively 【Comprehensive Set】: This practical toolset includes various sizes of cross driver bits to accommodate different screw types and sizes, offering versatility for all your drilling needs Specification: Material: Carbon Steel Size Chart:Length: 2.5cm/0.98inch, 5cm/1.97inch, 6.5cm/2.56inch, 7cm/2.76inch, 9cm/3.54inch, 15cm/5.91inch Package Includes:6 Screwdriver Bits Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.