Product Description BFL 4 Flutes Tungsten Carbide Roughing Milling machine tools 90%Carbide, 10% Co Roughing end millings Series Coating: ALTIN 1) Suitable for copper, Cast Iron, Carbon steel, and Mould steel, Stainless steel, Titanium Alloy, Tool steel, and Heat-treated steel processing. 2) Main features: Grain size carbon tungsten, high toughness, ALTIN coating, high wear-resistance, special use for high speed cutting of CNC milling machine. Also can increase the smoothness, reduce the rubbing coefficient, and improve the lathe efficiency, save more production time. If you are interested in our products or company, please contact me in any time. Thanks.