Solid Carbide End Mill 4 Flute HRC 63 nAco Coated Slot Drills Bit 1mm to 20mm

  

(1) NACo Coating on Inserts. (4) Spraying and air-jet cooling of steel is preferred to improve the effectiveness of the milling cutter. 02 When working, you need to add cutting fluid to protect the cutter, so that the cutting is smoother.