Square End Mill ,end mill ,mill cutter TIN, TIAIN, TIALN coated or not Standard or as per requirement Diam:1mm~25mm ... factory specialize in manufacturing all types of cutting & milling tools: Carbide End Mill, Ball & Nose End Mill, Corner Radius End Mill ... , Carbide Tip, Ejector Pin, Punch, Mold Etc.2) Super high hardness and precision, extreme smooth coating surface, can be coated by TIN, TIALN ...