Torque down or loosen fasteners with this hydraulic torque wrench. This tool uses hydraulic hose hookups to turn screws, bolts or other fasteners 480 to 3,230 ft.-lbs. of torque. Save yourself the strain of doing the job with a smaller air tool; this torque wrench is heavy-duty. It has a 1" square drive and may use impact sockets or other interchangeable heads.