65 degrees with fine particles of steel, stainless steel ball end mill, 2F. Particle size 0.2, AlTiSiCrN, TiSiCrN Coating Coating standard R0.5-R10.0, a total length of 50-100. Extended specifications R1.5-R10.0, full-length 75-150. The main cutting ordinary steel ,25-25 degrees 38 degrees 48 degrees alloy steel, pure hard steel 48-56,56-62, stainless steel, gray iron, ductile cast iron black material, adapted to pure hard steel 65, Hall of hardened stainless steel sink, aluminum, magnesium alloy, nickel-based superalloy, titanium material.