General description IRWIN Record 300 Stillson Wrench is a reliable tool designed for various industries, featuring a robust construction and precise functionality. Technical specifications Length: 450mm (18 in) Pipe capacity Nom Bore: 51mm (2 in) Material: High-grade cast malleable iron Other information Drop forged handles and jaws Accurately machined screw threads Sprung jaw that stays open until pressure is applied Conforms to BS 3594 Part 1