MA Ford 4mm EdgeHog, Cyl Flat End Miniature Carbide Bur SA-52M, Standard, Diameter: 4.0 mm, Shank Diameter: 3mm, Overall Length: 38mm, Flute Length: 12.7mm, Finish: Uncoated, Material Base: Carbide, MPN: 72010020M, Single (Standard) Cut - A general-purpose right hand flute style is recommended when rapid stock removal and good workpiece finish are the parameters.