Factory Pre-Set models are set at the factory to the customer’s specified torque setting and are furnished with a Certificate of Calibration. Please specify desired torque setting when order is placed. Three models available. Simple, easy to use design. Ruggedly built for years of reliable service. Operates bi-directionally. Rugged, light weight aluminum body. Automatic lock in CCW direction. Accuracy: ± 6% of indicated value, CW, from 2% to 1% of full scale. Meets or exceeds ASME B17.3 - 21