Monster Tool Company 1/2 4FL SE Stub TiCN Carbide End Mill, 61168, Diameter: 1/2, Number of Flutes: 4, End Style: Square End, Length of Cut: 5/8, Overall Length: 2-1/2, Shank Diameter: 1/2, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: TiCN