Bordo 18-38mm E-Z Chamfer hex shank de-burring and chamfering tool 2210-1838Chamfer and de burr bolts, pipe, threaded rod, bar and dowels. Manufactured from M2 HSS for extreme tool life. 18 38mm Shank (inch): 3 8" E Z CHAMFER Create a perfect chamfer for: starting a nut on a bolt or threaded bar. starting a button die or die nut on rod. creating a leading edge on timber dowel. E Z Chamfer efficiently removes burrs and ridges from bolts, pipe, threaded rod, bar and dowels. It is suitable for use on metals including mild and