Monster Tool Company 7/8 4FL SE REG TiN Carbide End Mill, 61980, Diameter: 7/8, Number of Flutes: 4, End Style: Square End, Length of Cut: 1-1/2, Overall Length: 4, Shank Diameter: 7/8, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: TiN