1. Endurable Materials: Crafted from high-grade chromium vanadium steel and carbon steel material, this screwdriver bit set is sturdy and safe, ensuring long-lasting performance. 2. Increased Efficiency: precise screw driving with our screwdriver bit set's uniquely designed bit heads, preventing or damage to screws. Perfectly matched screw holes and built-in cutter enhance work efficiency and quality. 3. Wide Range of Uses: With 50 pieces, this screwdriver bit set is an ideal tool for various disassembly and repair work for families, cars, electronics, and mechanical needs. 4. Excellent Present: This screwdriver bit set makes a perfect present for special occasions like Thanksgiving, Christmas, and birthdays. Whether for men or women, it's the ideal practical present to add to any toolbox. 5. Travel-Friendly Convenience: Comes with a portable storage box, which has fixing grooves inside, that can effectively prevent batches from being scattered or lost. Colour:As Shown Material:steel Package Contents: 1 * Impact Driver Bit Set(50piece) 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.