Shanghai Lidiao Precision Machinery Co., Ltd. is mainly engaged in the production of engraving tools. Our products are specially designed for CNC engraving machines, engraving and milling machines, and mini processing centers, which are small in shank diameter, and high in processing precision. Our Li Diao tools have been widely accepted as the top brand tools around the world. Li Diao brand series engraving tools are made of foreign-made ultra-micron tungsten steel, and are processed by high