36 in. Aluminum Straight Pipe WrenchSteel Dragon Tools 36 in. Aluminum Straight Pipe Wrench 31110 features heavy duty construction and a sturdy, aluminum I beam frame. The I beam frame helps keep the tool from weighing down the operators hand without sacrificing overall durability. Aluminum construction is nearly 40% lighter than comparable cast iron wrenches. Self cleaning threads with replaceable heel jaw will help the wrench operating for years to come. This wrench is ideal for use