Carbide End Mill, List Number E5012, Type General Purpose, End Style Square, Single End, Diameter 7/16 In, Shank Dia. 7/16 In, Length of Cut 2 In, Overall Length 4 In, Number of Flutes 4, Center Cutting Type, Cutting Direction Right Hand, Helix Angle 30 Degree, Finish TiN, For Mild Steels, Soft to Medium-Hard Steels, Stainless Steels and Non-Ferrous Metals 4-Flute Carbide End Mills, Stub and Extended Cut, Square End30 helix angle Center cutting