IRWIN Record 350 Leader Wrench is a heavy-duty wrench extensively used in heavy industry, particularly in the oil and gas fields and in civil engineering. The jaw housing is covered by a free replacement guarantee against breakage or distortionIRWIN Record 350 Leader Wrench 900mm (36 in). Length: 900mm (36 in).Pipe Capacity Nom Bore: 127mm (5 in).