Monster Tool Company 7/16 4FL DE REG (1/2 SHK) Carbide End Mill, 64166, Diameter: 7/16, Number of Flutes: 4, End Style: Square, Length of Cut: 7/8, Overall Length: 4, Shank Diameter: 1/2, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated