ITEM NAME:8x 4mm Tungsten Carbide Coated 4 Flute End Mill CNC Milling Cutter Drill Tool Description: These end mills are made of tungsten car.4 flutes, suitable for CNC data processing center, carved, high-speed machines. Use AlTiN, high aluminum content provides excellent hot hardness and oxidation resistance. End Type: Single End. 35 deg, high adaptability to the material and hardness of workpieces, widely used to mold and product processing and cost efficient.