Monster Tool Company 1/4 90-Deg. 6FL DE Carbide Countersink, 67889, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials. Economical double cutting ends., Diameter: 1/4, Number of Flutes: 6, Double End, Right Hand Cut, Included Angle: 90 2 1/4, Material Base: Carbide, Material Construction: Solid, Finish / Coating:, MPN: 67889, PKG QTY: 1 PC