Monster Tool Company .045 2FL SE REG AlTiN Carbide End Mill, 64404, Diameter: .045, Number of Flutes: 2, End Style: Square, Length of Cut: 0.135, Overall Length: 1.5, Shank Diameter: 0.125, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN