MA Ford 78018704 3/16 6-FLute, Chatterless Carbide Countersink 100-Degree, Diameter: 3/16, Shank Diameter: 3/16, Overall Length: 1-1/2, Included Angle Degree: 100, Base Material: Carbide (steel shanks on tools 3/8 diameter and larger), Number of Flutes: 6, MPN: 78018704, PKG QTY: 1 PC