The Vevor 4.92 in. Wireless Electric Rotary Fabric Cutter features an ultra-powerful servo motor with five adjustable speeds (600/800/1000/1200/1400 RPM) for precise control in various cutting situations. Its premium sharp steel blades, with an octagonal shape, ensure a smooth cut without pulling in the fabric. The ergonomic handle design makes it comfortable to hold and labor-saving, while the easy-to-change whetstone enhances convenience. For safety, an adjustable front knife-guard is installed, allowing you to match the thickness of the materials being cut. This lightweight yet powerful rotary shear effortlessly cuts single and low-lays of various materials, including cloth, knitted fabrics, plastics, synthetics, leather, lace, fiberglass, and vinyl.