1. APMT1604 tools are often used in turning, milling, drilling and other processing techniques of metal materials. It can be applied to workpieces with different hardness and materials, including steel, aluminum alloy, cast iron, etc. 2.  APMT1604 tool has good cutting performance, can provide higher cutting speed and longer life, reduce processing time and frequency of tool replacement 3. Please note that detailed product information (such as tool size, material, coating, etc.) may vary by supplier or manufacturer. Therefore, before purchasing or using any knives, it is recommended that you carefully read and follow the exact specifications and instructions provided by the knife manufacturer.YBG205 Ultra fine carbide substrate +Nano coating Suitable for finishing and semi-finish milling of P- and M- material APMT1604PDER The APMT stands for the tool series, and 1604 stands for the size and shape of the tool. It usually made of hard alloy (Carbide). Carbide cutting tools have excellent hardness and wear resistance, suitable for high-speed machining and long-term use. Blade shape: Blades are usually square or diamond-shaped and have pointed cutting edges. Number of Edges: Depending on the specific model, blades may have single or multiple edges