This profile shear with right hand blades cuts profile and flat materials up to 18-gauge, spiral duct, wire mesh, and many other materials. These snips are extremely light and maneuverable at 5 pounds and can cut tight curves at a radius of 3 inches. The blades are made of high-quality steel, heat treated and precision ground. The KD-446R boasts a variable speed motor up to 2,500 rpm and cuts up to 28 fpm. U.S. Patent #7,971,360. For more information visit www.kett-tool.com.