Monster Tool Company .040 4FL SE Stub .010R Carbide End Mill, 65781, Diameter: .040, Number of Flutes: 4, End Style: Corner Radius, Length of Cut: 0.060, Overall Length: 1.5, Shank Diameter: 0.125, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated