Carbide End Mill, High Performance, List Number HP441, Type Regular, End Style Square, End Center Cutting, Diameter 1.5mm, Shank Dia. 3mm, Length of Cut 5mm, Overall Length 39mm, Number of Flutes 4, Cutting Type Center, Cutting Direction Right Hand, Helix Angle 30Deg, Finish TiALN, Application For Carbon Steel, Tool Steel, Cast Iron, 300 or 400 Series Stainless Steel HY-PRO CARB Carbide End MillsFor profiling and slotting applications. Use with cast iron, carbon steel, alloy steel, titanium, inconel, stainless steel, and hardened steel.30 helix angle Center cutting