Check the listing for details. 1mm Tip Solid Carbide AlTiN Coated Nose End Mill 4 Flute for CNC HRC45 2Pcs. Condition: New. Listed at 22.63 USD. CNC Router Bits Spiral Milling Cutter HRC45Why Choose This:★Square Nose End Mill: Cutting Diameter: 1mm / 0.04"; cutting flute length: 3mm / 0.12"; shank diameter: 4mm / 0.16"; overall length: 50mm / 2"; cutting hardness: HRC45; spiral angle: 35 degree.★Features: Square end cut, 4-flute design, spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting. AlTiN composite coating can increase hardness, reduce oxidation wear for better wear resistance and extend tool life.★Wide Applications: Suitable for cutting carbon steel, malleable cast iron, alloy steel, die steel, etc. For shallow groove machining, side milling and finishing. Use on CNC machining centers, engraving machines and other high-speed CNC machine tools.