Features: The manual impact driver set is your first solution for tackling rusted, stripped, and broken screws with ease, ensuring efficient dismantling of old screws. Crafted from alloy steel, this impact driver bit set features a double directional designs for easy switching and includes various bit size for broader applications. For professional repair technicians, DIYer enthusiasts, and household users, this set caters to a wide ranges of skill level and needs. Perfectly suited for furniture assembly, electronic device repairs, and everyday home maintenance tasks. With its antislip designs and precises fit, this durablity and wear resistant screwdriver set promises long lastings performances, making it a essential addition to any toolkit. Specifications: Component:Carbon Steel Package Includes: 12pcs/set Manual Impact Driver note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.