Square End Mill Grade Micro Grain Carbide List Number CEM-AM3 Square End Mill Style End Mill Material Carbide Dimension Type Decimal Inch Milling Diameter 0.3125 In. Number of Flutes 3 Single End Length of Cut 2.125 In. Center End Mill Cutting Type Overall Length 4.000 In. Finish ZrN Straight Shank Type Shank Dia 0.312 In. Cutting Direction Right Hand Helix Angle 38 Degrees Corner Radius 0.000 In. Neck Dia 0.0000 In. Neck Length 0 In. End Mill Application FinishingWARNING:: California ResidentsThis product can expose you to chemicals including Styrene, which is known to the State of California to cause cancer and birth defects or other reproductive harm.