1.JK8 series of tungsten coated flat steel mill, standard: Φ4 * 10 * 50 * 4 * 4F. Imported materials, ultra-fine particles, particle size 0.2um, helix angle 45 Asian black coat, HRC65. 2. Mainly for the processing of ordinary steel 25,25-38, alloy 45, 48,56-62 pure hard steel, gray cast iron and cast iron black ball. 3 65 adapted to pure hard steel, stainless steel, Shen Dian hardened stainless steel, aluminum, magnesium and aluminum alloys, nickel-based superalloy and titanium alloy material. 4 blade closer to the mirror, smooth edge, good precision and high efficiency. Long life, is the best tool for high-speed machining. 5 price, quality assurance, please feel free to inquire and negotiate.