The cutting accuracy of the paper cutter is an important factor to measure the quality of a paper cutter. A high-precision paper cutter is a high-quality paper cutter.

        To make the edge of the cut paper smooth, it is necessary to ensure that the blade of the cutter is sharp and the angle of sharpening is appropriate. When cutting soft paper, the blade sharpening angle should be 16 °; when cutting cardboard and kraft paper, the blade sharpening angle should be 20 °; when cutting common printing paper, the blade The sharpening angle is preferably 21 °.