A rotary cutter has a round blade that rolls across fabric cutting it on a self healing mat. They are in a variety of styles and sizes.
Rotary Cutter, Professional 45mm Rotary Fabric Cutter, Rotary Cutter for Fabric, Card Paper Sewing Quilting Roller Fabric Cutting Tailor Scissors
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What is a rotary cutter, and how is it used? - Quora
EMPOWER 3.6V Cordless Multi-Purpose Rotary Cutter
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Olfa 45 mm Deluxe Rotary Cutter
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