Monster Tool Company 1/64 4FL SE REG TiN Carbide End Mill, 61835, Diameter: 1/64, Number of Flutes: 4, End Style: Square End, Length of Cut: 3/64, Overall Length: 1-1/2, Shank Diameter: 1/8, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: TiN