Compared with the development of domestic and foreign tools. At present, although the domestic tool industry is showing a good trend of cemented carbide rotary files, the international tool market has maintained a stable recovery in recent years. For example, the annual sales of China's tools are about 14.5 billion yuan, but the market demand for hard materials is large. Alloy cutting tools account for less than 25% of cemented carbide rotary files, blindly produced and not produced according to market demand, but the average annual growth rate is conservatively estimated to remain at about 3% to 5%. In the end, the domestic tool market will It may be gradually replaced by foreign knives, but according to relevant data, domestic knives have formed an unbalanced development state, so foreign knives have gradually entered the Chinese knives market in recent years. It will be possible to replace cemented carbide rotary burrs, thus forming a vacuum state cemented carbide rotary burrs in the mid-to-high-end market. According to relevant data, the annual growth rate of foreign cutting tools in China's mid-to-high-end tool market has reached 30%, which has surpassed that of domestic products. The average annual growth level of cutting tools is a serious warning for the domestic cutting tool industry. If the production structure of cutting tools is not adjusted, foreign cutting tools have reached a relatively full state in the country.