Monster Tool Company 3/16 4FL DE Stub AlTiN Carbide End Mill, 64066, Diameter: 3/16, Number of Flutes: 4, End Style: Square, Length of Cut: 3/8, Overall Length: 2, Shank Diameter: 3/16, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN