MA Ford 78100001 1" 6-FLute, Chatterless Carbide Countersink 60-Degree, Diameter: 1, Shank Diameter: 1/2, Overall Length: 2-3/4, Included Angle Degree: 60, Base Material: Carbide (steel shanks on tools 3/8 diameter and larger), Number of Flutes: 6, MPN: 78100001, PKG QTY: 1 PC