Solid Carbide End Mill 4 Flute HRC55 TiSiN Cutter Coated Slot Drill Bit 1mm-20mm

  

(1) 55°4 flute coated end mill, sharp and strong, fast milling speed. Higher wear resistance and sharpness of end milling cutter. (2) When working, it is necessary to add cutting fluid to protect the cutting edge and make the cutting smoother.