Monster Tool Company 5/64 4FL SE REG TiCN Carbide End Mill, 61853, Diameter: 5/64, Number of Flutes: 4, End Style: Square End, Length of Cut: 1/4, Overall Length: 1-1/2, Shank Diameter: 1/8, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: TiCN