Reed Tool RCORP Smooth Jaw Wrench, 2-Inch Fits up to 2-Inch corp stops and opens to a generous maximum of 4 1/2-Inch Coarse adjustment thread and a large thumbscrew provide quick, easy adjustments for the numerous size changes encountered during jobs Smooth jaws are strong, yet gentle on valves and fittings Strong, forged steel Maximum Actual Opening: 4 1/2-Inch