The expected torque output The applied hydraulic pressure {CW, CCW} Connector Name [Text] A test process that measures the accuracy of hydraulic torque wrenches where hydraulic pressure is applied to the torque wrench and it applies a known torque to the nut or bolt being tightened. This process usually is used to calibrate hydraulic torque wrenches producing a lookup sheet the operator can use to quickly look up the pressure required to correctly torque the bolt or nut.