Profile Shear with right hand blades. Cuts profile and flat materials up to 18 gauge C.R. mild steel, soft non-ferrous metals like aluminum, copper and brass to .090; spiral duct, wire mesh and many other materials. These snips are extremely light and maneuverable at 5 pounds, the KL-446R can cut tight curves at a radius of three inches. The blades are made of high quality steel, heat treated and precision ground. The straight-handle, single-speed motor cuts up to 28 feet per minute at 2500 RPM. U.S. Patent #7,971,360.