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-14 Heavy-Duty Chain Wrench Size 350mm (14in). Rated Pipe Capacity 50mm (2in). Actual O.D. Capacity 125mm (5in). Chain Length 460mm (18.1/2in). Weight 1.2kg. 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.