When desired torque is reached, there is an audible click and a "feel impulse", wrench automatically resets itself. Designed toretain calibration for 30,000 cycles under normal use. Clockwise and counterclockwise torque capability. Positive locking mechanism allows you to simply dial and lock in the desired torque. All wrenches feature a dual scale. PROTO Micrometer Torque Wrenches are calibrated to 3% of torque reading clockwise and 6% counterclockwise at 20% to 100% of full scale.
