Monster Tool Company 3.5mm 4FL SE REG (12mm LOC) AlTiN Carbide End Mill, 62017, Diameter: 3.5, Number of Flutes: 4, End Style: Square End, Length of Cut: 12.0, Overall Length: 51.0, Shank Diameter: 4.0, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN