The Ridgid Heavy Duty Chain Wrench provides a double jaw to give fast ratcheting action in both directions. The wrench features a cast iron I-Beam handle for maximum strength and a wide gripping surface for comfort. The wrench also features replaceable alloy steel jaws for long life of the tool. The maximum pipe diameter capacity for the wrench is 3" and the chain length is 20-1/4". *Rated Pipe Capacity = nominal diameter that can be correctly tightened. Actual O.D. capacity = actual O.D. that the chain can accommodate.