Monster Tool Company 5/8 x 3/8 100-Deg. 6FL Carbide Countersink, 67849, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials, Diameter: 5/8, Number of Flutes: 6, Single End, Right Hand Cut, Included Angle: 100 2-3/4 3/8, Material Base: Carbide, Material Construction: Brazed, Finish / Coating:, MPN: 67849, PKG QTY: 1 PC