We know that cutting is the foundation of mechanical manufacturing technology, and high-speed cutting is the mainstream of cutting. Therefore, the revitalization of China's machinery manufacturing industry is inseparable from the improvement of cutting tool manufacturing technology and application level. To this end, on the occasion of the first anniversary of the “Cutter Tool Application Survey†in 2002, we invited several well-known scholars, business leaders and experts who have been engaged in promotion work for the metal cutting tool industry to “develop modern tools and applications in Chinaâ€. The topic of modern knives is discussed, hoping to give some readers some enlightenment. "Mechanical Workers" is willing to contribute to improving the level of metal cutting in China.