Carbide End Mill Grade C2 Micro Grain List Number 206 General Purpose End Style Corner Radius End Single End Dimension Type Fractional Inch Diameter 1/2 In. Shank Dia 1/2 In. Length of Cut 1 In. Overall Length 3 In. Number of Flutes 4 Center Cutting Type Cutting Direction Right Hand Helix Angle 30 Degrees Corner Radius .037 In. Finish Uncoated