• Professional rotary trimmer with 18 blade is ideal for a variety of office functions as well as school, arts and crafts projects • Patented Carl rails and premium carbide blades hold paper and paperboards firmly in place and cut more precisely • Trimmer has a sturdy, metal calibrated base for accuracy and added stability and features preset measurements for common-sized items • Use trimmer to cut mat board, cardstock, plastic sheets, and more • Blade cuts up to 10 sheets of standard copy paper • Use optional B-Series blades (not included) for 11 different cutting patterns