High-strength carbon steel forging and high-frequency quenching process: The surfaces is high-carbon steel, and the heavy and textured surfaces is treated with high-frequency quenching, which is firm and . The inverted teeth are sharpness and wear-resistant: is sharpness and , which saves time and effort instead of manual wood and greatly improves the working efficiency. grooves designed on the back: Fast blanking, sharpness tool for polishing and shaping, rapid of waste, time-saving and labor-saving, and high efficiency. Complete specifications and styles: Multiple types of plane/inclined plane can be selected to meet your various needs. Package includes: 3Pcs Carving Disc