A space-saving addition to your metalworking tools! One side of the double action head produces.040in. offset flanges on up to 20 gauge metal for clean welding with little grinding. The other side produces perfectly clean 3/16in. diameter holes, ideal for plug welding. Unique swivel-head design lets you work from almost any angle. Punches metal up to 14 gauge. Requires 4 cfm @ 90 p.s.i.. Imported. NOTE: The center of the hole produced is 1/4in. from the panel edge.