Monster Tool Company 1/4 2FL SE REG BN AlTiN Carbide End Mill, 63143, Diameter: 1/4, Number of Flutes: 2, End Style: BallNose, Length of Cut: 3/4, Overall Length: 2-1/2, Shank Diameter: 1/4, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: AlTiN