Our high-precision circular blades (round knives) are made from premium tool steel (SKD-11 / D2) with CNC precision grinding for clean, burr-free cuts and extended service life. They are ideal for slitting, rewinding, and converting of paper, film, foil, rubber, leather, and non-woven materials. Available in a wide range of diameters, thicknesses, and tooth profiles (plain, serrated, scalloped). Custom sizes, materials, and OEM/ODM service are supported. Strict hardness control and full inspection ensure stable performance on high-speed production lines. Fast delivery, competitive factory price, and professional technical support.