Monster Tool Company .0639 ST FL RHC Carbide Reamer, Diameter: .0639, Number of Flutes: 4, Single End, Right Hand Cut, Length of Cut: 0.3750, Overall Length: 1.5000, Shank Diameter: 0.0639, Helix: 30-Degree, Right Hand Cut, Material Base: Carbide, Finish / Coating: Uncoated, MPN: 69492, PKG QTY: 1 PC