Ridgid 48592 R5 5/16-inch Ratcheting Tube Wrench Made from high-quality carbon and stainless steel, RIDGID Ratchet Tube Wrenches can be used in a wide variety of applications from plumbing to hydraulics The spring-loaded jaws snap open and close around the fitting, enabling the tool to be used in tight quarters The multi-point contact of the wrench helps prevent distortion of thin-walled fittings 5/16" capacity 280 in torque capacity