KDG303 - It is a combination of ultra-fine carbide substrate and Nano nc-TiAlN coating. It is a universal grade for machining of carbon steel, alloy steel ( HRC<=48), cast iron and stainless steel. Suitable for the machining of Ni based high-temperature alloys at normal cutting speed.
YK20F - It is an ultra-fine carbide grade with good wear resistance suitable for drilling and reaming of cast iron and nonferrous metals.
YK30F - It is an ultra-fine carbide grade with good wear-resistance. A universal grade for drilling.