Selecting grinding heads with different materials, shapes and models can perform grinding, polishing, carving, seal cutting, hollowing, drilling, grinding, deburring and other operations on almost all machined surfaces with different materials. Because of its light weight, almost no jitter, small head jitter (high quality can reach less than 0.02MM), small size, head diameter of about 20MM, users will be handy to operate, and the machined surface of the workpiece is smooth and high precision, so it is widely used: polishing and carving the feed port on the mold, polishing with wool wheel and grinding paste can cast a mirror-like bright effect. For grinding of mechanical maintenance, the size of the allowance can be controlled at will. When processing wood with large allowance, the requirements from rough surface to fine surface can be gradually met by selecting milling cutter for carving and hollowing out, and selecting grinding rings with different thicknesses for rough grinding and fine grinding. Using cloth wheel polishing can achieve the effect of bright surface, which is most suitable for wood carving, root carving, micro-carving art and processing fields. Compared with conventional hand tools, the efficiency can be improved by 5- 10 times. And the operator will not feel tired. No matter on the plane or curved glass, with a diamond grinding wheel, in the hands of skilled technicians, a vivid picture is immediately displayed. The grinding speed of denture model workshop is greatly accelerated. Carving, hollowing out and polishing of jewels and jade make you do whatever you want. Deburring, micro-shaping and polishing of machining unit can replace manual filing. Dealing with large-scale seal cutting is fast and exquisite. The polishing of gold and silver jewelry in the process of processing reflects its small and exquisite side. Carving and hollowing out nuts such as walnuts and gourds is even more handy. Polishing and grinding in the process of model making. Sharpening household knives, engraving names on cameras and other electrical appliances, and making small handicrafts to show the fun and uniqueness of their own production.