The Mountz LB250F 250 lb-ft / 340 Nm Mechanical Torque Loading Bench, # 063302 is designed to ensure accurate calibration of torque wrenches. Laboratory grade construction assures accurate torque calibration and pre-setting, independent of human influence or transducer side and end load factors. The drive system assures the load application, eliminating the operator induced test error. Built for durable use, the Loading Bench reduces the operator effort required to attain and sustain torque during the calibration process. Large wheel for smooth manual loading. Operates in both clockwise and counterclockwise directions.