5Pcs 4 Flute 90 Degree 3/16″ x 5/8 “x 2” Solid Carbide Drill Mill – AlTiN Coated
AlTiN coating for improved performance : The surface uses advanced AlTiN coating technology to significantly improve the heat resistance and oxidation resistance of the tool, suitable for high-speed cutting and difficult to process materials, and improve processing efficiency.