Do all rotary cutters use round blades?
The majority of rotary paper cutters and trimmers use a round rotating blade. Some entry-level cutters, however, use a single “razor blade” style cutting head. The single blade is stationary and cuts through the paper as force is put on the cutting head. The downside to these types of paper cutters is that the cut is not as straight as a round blade and as the straight blade becomes dull it will begin to tear the paper.
