1. The material used to manufacture the cutters of digital display paper cutters is one of the main factors affecting their sharpness and service life. The cutter is made of high-temperature insert welding of the blade body and blade. The material of the blade body is low carbon steel, which is very durable, and the material of the blade is chromium tungsten manganese steel, which has very high hardness.
        2. The shape and angle of the sharpener also have a great influence on the use of the cutter. The sharpening angle of a single sharpening tool is generally between 19 ° and 23 °. The shape of this angle is easy to be worn during the cutting process, and the double-sided cutting edge is a more ideal shape. The relatively small angle not only reduces wear and tear, but also improves the cutting accuracy.
        3. The higher the quality of the sharpening knife, the better the use effect of the knife and the longer the service life. This part mainly depends on the choice of materials, equipment and sharpening process.

        4. The material to be cut by the digital display cutter is also a factor that affects the service life of its cutter. The harder the texture of the material being cut, the greater the sharpness and service life of the tool.