Premium High Speed Steel: Crafted from high speed steel for wear resistance and sharpness, perfect for woodworking and detailed sanding tasks by professional and hobbyists Hexagonal Shank Compatibility: Features a 635Mm hexagonal shank design for easy compatibility with various power tools, ensuring secure installation and stable performances during high speed rotation Versatile Sanding Solution: Ideal for sanding wood, plastic, and soft metals, especially effective for intricate curves and irregular shapes, meeting high precisions craftsmanship demands Efficient Rotational Design: The unique rotary file design works seamlessly with power tools to reduce manual sanding time, delivering smooth finishes quickly and boosting productivity Compact and Portable: Lightweight construction enhances portability and storage convenience, making it suitable for on site woodworking or DIYer projects without occupying much space, Manufacturer: JAMIEKA