Monster Tool Company 5/8 4FL SE X/LG 3x6 Carbide End Mill, 62838, Diameter: 5/8, Number of Flutes: 4, End Style: Square End, Length of Cut: 3, Overall Length: 6, Shank Diameter: 5/8, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated