Carbide End Mill, Grade C2 Micro Grain, List Number 224, General Purpose, End Style Ballnose, End Single End, Dimension Type Fractional Inch, Diameter 1/2 In., Shank Dia. 1/2 In., Length of Cut 1-1/2 In., Overall Length 4 In., Number of Flutes 2, Center Cutting Type, Cutting Direction Right Hand, Helix Angle 30 Degrees , Finish TiAlN