CNC tools, in particular, refer to tools and tool auxiliary systems used in conjunction with advanced and efficient CNC manufacturing systems such as machining centers, CNC lathes, CNC boring and milling machines, and CNC drills. The tools used on these lathes are called CNC tools.

The turning tool cutting part of CNC tools consists of rake surface, main flank surface, auxiliary flank surface, main cutting edge, auxiliary cutting edge and tool tip.

When CNC tools are used, the cutting speed of the tool is increased to about 8 m/min. When high-speed steel is used for CNC tools, it is increased by more than two times. 

When cemented carbide is used, it is increased by more than two times than high-speed steel. The surface quality and dimensional accuracy of the workpiece are also greatly improved. 

The cutting speed of CNC tools is determined by the material used.

The tool with a hole is set on the main shaft or mandrel of the machine tool by means of the inner hole, and the torsional moment is transmitted by means of an axial key or an end face key, 

such as cylindrical milling cutters, shell milling cutters and other shank tools usually have rectangular shank, cylindrical shank and Three types of conical handles. Turning tools, planers, etc. 

are generally rectangular shanks; conical shanks bear axial thrust by taper, and transmit torque with the help of friction; cylindrical shanks are generally suitable for smaller twist drills, end mills 

and other tools. The friction generated transmits a torsional moment. These handles of different shapes are used according to their own characteristics.