MA Ford 61T050006, 1/2 HSS UniFlute Countersink,120 Deg,TiN Coated, Diameter: 1/2, Shank Diameter: 1/4, Overall Length: 2, Included Angle Degree: 120, Base Material: HSS, Number of Flutes: 1, MPN: 61T050006, PKG QTY: 1 PC, Description: MA Ford Series 61 HSS Uniflute Countersink. The original single flute countersink designed for general purpose countersinking, chamfering or deburring.