1. To select a high-quality long life grinding wheel, first check the number of diamond particles in the grinding wheel. In order to reduce costs, inferior diamond wheels reduce costs by reducing diamond content. After the consumer uses it, it not only does not move but also consumes quickly.
2. View the color of the cutter head. Ordinary cutter heads should be silver-white and have the natural color of iron. Inferior blades have darkness due to more impurities.
3. The feeling of cutting, first of all, in the case of a fast working grinding wheel, the cutting should be smooth.
4. The inferior diamond grinding wheel is made of silicon carbide. The difference between diamonds is that the abrasive particles are resistant to wear, while the grinding wheels made of diamond are very durable.