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 distortion. IRWIN Record 350 Leader Wrench 300mm (12 in). Length: 300mm (12 in).Pipe Capacity Nom Bore: 51mm (2 in). Irwin Record 350 Leader Wrench 300Mm (12In) in Blue