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. This light-duty model has a one-piece forged alloy steel handle and jaw. Size: 300mm (12in).Rated Pipe Capacity: 50mm (2in).Actual O.D. Capacity: 100mm (4in).Chain Length: 390mm (15.3/4in).Weight: 0.8kg. 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.Additional Information:Length (mm): 300mmCapacity (mm): 50