Superior Tool Company 04818  18-Inch Heavy Duty Straight Aluminum Pipe Wrench with 18-Inch Durable Light Weight Wrench with 2-1/2-Inch Jaw N/A Imported Durable, Easy to Use Epoxy Powder-Coated Finish Superior Tool 4818 Eighteen Inch Aluminum Pipe Wrench (18") Provides the same features and strength as the cast iron models, but weighs nearly 40% less Titalum is a special aluminum alloy that provides additional strength Exceeds government specification GGG651 Type II, Class C