For the commercial repair man, use this #500-2A grommet hole cutter for preparing to set your washers and grommets. This tool is drop forged, hardened, polished edge and is tapered inside for easy clearance. The hole size is 3/8 inch and is to be used with corresponding grommets and setting dies. Weight is approxmately 3 oz. (Use with Item #GRO2R)