A4 paper cutter should pay attention to maintenance and maintenance when replacing the blade, use a knife holder to ensure that the cutting edge of the blade is closed, not only to ensure the safety of people, but also to ensure that the cutting edge is not damaged.

The cutter of the single-piece A4 paper cutter is made of high-temperature insert welding of the blade and the body. The blade is made of chromium-tungsten-manganese steel with high hardness and the body is made of low-carbon steel.