These Faithfull heavy-duty industrial tools known as 'Leader' pipe wrenches. They are used in civil engineering and are consequently made to conform to the most stringent specifications.The cast iron handle is a heavy 'I' beam construction to ensure maximum strength and rigidity under loading. The teeth on each jaw are hardened and tempered to resist wear. The design of this wrench allows a bigger jaw capacity than the 'Stillson' wrench. The lower jaw is precision seated to prevent harmful loading onto the retaining pin. Conforms to BS3594 part 1.Size: 450mm (18 in)Jaw capacity: 76mm (3 in)Additional Information:Length (mm): 450Capacity (mm): 76Length (in): 18