These 5/8 inch oblong leather punches or bag punches are made by C.S. Osborne in the USA. Taper clearance. Polished barrel, hardened and polished edge. Used extensively by leather bag and strap manufacturers. This is a professional hole punch for full time leather shops punching holes on a daily basis.
I am new to leather craft, that is the only reason why I did not give this 5 stars. Nothing to compare to. It make a clean punch with little effort. Well made and feels solid in your hand.