Monster Tool Company .090 4FL SE Stub Ball Carbide End Mill, 65313, Diameter: .090, Number of Flutes: 4, End Style: BallNose, Length of Cut: 0.135, Overall Length: 1.5, Shank Diameter: 0.125, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated