Monster Tool Company 3/64 4FL SE Long (3/8x2 1/2) Ball Carbide End Mill, 65983, Diameter: 3/64, Number of Flutes: 4, End Style: BallNose, Length of Cut: 3/8, Overall Length: 2-1/2, Shank Diameter: 1/8, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated