Carbide End Mill Grade C2 Micro Grain List Number 206 General Purpose End Style Square End Single End Dimension Type Fractional Inch Diameter 1/4 In. Shank Dia 1/4 In. Length of Cut 3/4 In. Overall Length 2-1/2 In. Number of Flutes 4 Center Cutting Type Cutting Direction Right Hand Helix Angle 30 Degrees Finish TiAlN