Monster Tool Company 3/16 4FL SE REG TiCN Carbide End Mill, 61880, Diameter: 3/16, Number of Flutes: 4, End Style: Square End, Length of Cut: 5/8, Overall Length: 2, Shank Diameter: 3/16, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: TiCN