IRWIN VISE-GRIP Tools Cast Aluminum Pipe Wrench, 3-Inch Jaw Capacity, 24-Inch (2074124) Heavy-duty cast-aluminum IRWIN VISE-GRIP pipe wrench housing is 40% lighter than cast iron and easier to maneuver Pipe wrench features an I-Beam handle and wide design that provide better weight distribution Aluminum pipe wrench has a drop-forged jaw that's heat-treated to resist distortion and breakage Easy-spin adjusting nut is heat-treated for durability Hammer-head design provides a flat surface for hammering 40% lighter than cast iron I-Beam handle and wide design provides better weight distribution Drop-forged jaw resists distortion or breakage Easy-spin adjusting nut is heat-treated Hammer head design provides flat surface for hammering