Whether the cutter of the cutter is sharp and how long it is used greatly affects the production efficiency of the cutter. The life and effect of the tool depends on the following factors,
        1. Materials for making props.
        2. Factors such as the shape and angle of the sharpening stone (sharpening wheel), the quality of the sharpening blade, and the type of material being cut.
        For the raw material of the cutting head, the material of the cutting edge should be chromium tungsten manganese steel with relatively high hardness, and the cutting body can be made of low carbon steel. If it is a high-quality blade, it can reach a certain hardness after fire extraction.
        In terms of the shape and angle of the sharpening blade, if the sharpening angle of the cutting blade is relatively small, its blade will be sharper. Therefore, as long as the tool material allows, the angle of sharpening should be as small as possible.

        The quality of the sharpening knife depends mainly on the skill level of the operator. If the quality you feel is relatively high, the longer it can be used.