The RIDGID Chain Wrenches has a sturdy, cast-iron housing with an I-beam handle and a double jaw that gives fast, ratchet-like action in either direction. It is ideal for use in close quarters. The heavy-duty models have replaceable alloy steel jaws. RIDGID C-24 Heavy-Duty Chain Wrench Size: 600mm (24in). Rated Pipe Capacity: 75mm (3in). Actual O.D. Capacity: 125mm (5in). Chain Length: 500mm (20.1/4in). Weight: 3.7kg. Rated Pipe Capacity is the nominal diameter that can be correctly tightened. Actual O.D. Capacity is the actual O.D. that chain can accommodate. RID31325