Recess may not be the correct description. I am trying to find out how I would cut a semicircle in a piece of HSS. I want a 1/8" or 3/16" done. The piece of steel is 7" long and 1/4 X 1/4 square. The purpose is to create a tool that cuts beads like the Sorby bead cutter at the following location:
Bob Darrah West Linn, Oregon