MA Ford 4mm EdgeHog, Cylindrical Flat End Carbide Bur SA-13M-F, Fine, Diameter: 4.0 mm, Shank Diameter: 6mm, Overall Length: 50mm, Flute Length: 16mm, Finish: Uncoated, Material Base: Carbide, MPN: 41156230M, Fine Cut - A general purpose right hand flute style designed for producing higher quality finishes, when removing less stock, with more operator control.