Features: Brand new and high quality Our Extended Screwdriver Bit Set provide convenient operation in narrow and deep holes. Suitable for professionals and DIY enthusiasts. Easily identify and differentiate with eye catching, improving work efficiency. The extended provide better and maneuverability for various requirements. Perfect for automotive repair technicians, electronic maintenance personnel, and woodworking enthusiasts who need to tighten loosen screws. steel for long use. suitable for different screw head, our screwdriver bit is widely used in automotive repairs, electronics maintenance, furniture assembly, and more. Whether you're a professional in constructions, a carpenters, a DIY enthusiasts, our slip resistant handle and precise operation make for screw tightening tasks. Specifications: Material: Vanadium Steel Set: 10Pcs, 20Pcs(optional) Package Includes: 10/20Pcs Magnetic Screwdriver Extension note: Please allow 1-3mm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item.