Carbide End Mill, List Number E5025, Type General Purpose, End Style Square, Double End, Diameter 1/8 In, Shank Dia. 3/8 In, Length of Cut 3/8 In, Overall Length 3-1/16 In, Number of Flutes 2, 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 Carbide Double End Mills, Square EndE5025/E5022/E5024/E5023For slotting, drilling, pocketing, and general applications. Use with hardened and high alloy steels, steel casting, chill casting, malleable cast iron, CrNi- steels, brass, copper, and aluminum.30 helix angle Center cutting