Wide range of uses: Rotary spherical grinding head, widely used in metal products, tool manufacturing, engineering, model making, wood carving, jewelry making, welding, chamfering, casting, deburring, grinding, cylinder head insertion, and sculpture. Tooth surface: The teeth provide excellent service life and have longer-lasting burrs. Comfortable and effortless, allowing you to easily and quickly remove a variety of materials. The coarse coating allows for rapid stock removal while leaving a relatively smooth finish. Function: A very rough coating can quickly remove white while maintaining a relatively smooth finish. It can save time and energy. Design: The rotary file head is spherical, the file teeth are medium teeth, and the size is moderate.