Carbide End Mill Grade C2 Micro Grain List Number 216 General Purpose End Style Corner Radius End Single End Dimension Type Fractional Inch Diameter 1/4 In. Shank Dia 1/4 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 Corner Radius .030 In. Finish Uncoated