CNC engraving and milling machines use a variety of tools and materials, and the engraving and milling materials are very wide, ranging from hard to various metals, marbles, soft to PVC, plexiglass, two-color boards, etc., so what kind of engraving and milling For the product of the material, what kind of tool should be used. For a good product to be processed, it is very important to have a good tool. The requirement for the tool is not only whether it is sharp, but also whether its model, size, material, and parameters are appropriate. , These will affect the quality and efficiency of engraving and milling.