MA Ford 78050004 1/2 6-FLute, Chatterless Carbide Countersink 100-Degree, Diameter: 1/2, Shank Diameter: 3/8, Overall Length: 2-1/8, Included Angle Degree: 100, Base Material: Carbide (steel shanks on tools 3/8 diameter and larger), Number of Flutes: 6, MPN: 78050004, PKG QTY: 1 PC