Monster Tool Company 3/16 90-Deg. 4FL DE Carbide Countersink, 67728, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials. Economical double cutting ends., Diameter: 3/16, Number of Flutes: 4, Double End, Right Hand Cut, Included Angle: 90 2 3/16, Material Base: Carbide, Material Construction: Solid, Finish / Coating:, MPN: 67728, PKG QTY: 1 PC