Monster Tool Company 11/16 4FL SE REG AlTiN Carbide End Mill, 61966, Diameter: 11/16, Number of Flutes: 4, End Style: Square End, Length of Cut: 1-1/2, Overall Length: 4, Shank Diameter: 3/4, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN