... surface, can be coated by TIN, TIALN, ALTIN, TIAIN, etc.2) Excellent performance in some sticky metals cutting (good anti-sticky ... tool life, super high wear resistant and impact-resistant application.4) Work piece material: cast iron, carbon steel, alloysteel,hardened steel ... , quenched steel, non-ferrous metals, etc. 2/4 flutes end mill-standard length