paper cutter knives 1,Used in printing and papermaking industry to cut papers 2,HSS and alloy steel respectively paper cutter knivesHigh-speed steel of paper cutter knives: The blade of our high-speed steel paper knives is made from SKH-2. Thus it is a ideal knife for cutting paper money,art printing paper,copperplate paper.With hardness above HRC64,the use life of our high-speed paper cutter ...