Carbide End Mill Grade C2 Micro Grain List Number 206 General Purpose End Style Square End Single End Dimension Type Fractional Inch Diameter 1 In. Shank Dia 1 In. Length of Cut 1-1/2 In. Overall Length 4 In. Number of Flutes 4 Center Cutting Type Cutting Direction Right Hand Helix Angle 30 Degrees Finish TiAlN