Monster Tool Company 5/8 90-Deg. 6FL DE Carbide Countersink, 67901, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials. Economical double cutting ends., Diameter: 5/8, Number of Flutes: 6, Double End, Right Hand Cut, Included Angle: 90 3-1/4 5/8, Material Base: Carbide, Material Construction: Solid, Finish / Coating:, MPN: 67901, PKG QTY: 1 PC