Monster Tool Company 4.5mm 2FL SE REG (16mm LOC) AlTiN Carbide End Mill, 61343, Diameter: 4.5, Number of Flutes: 2, End Style: Square End, Length of Cut: 16.0, Overall Length: 51.0, Shank Diameter: 5.0, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN