Heavy Duty Pipe Wrenches are made in the U.S.A with a straight iron handle. They are adjustable, which makes it easy to fit around different sized pipes. Pipe wrenches are a Cast Iron or Cast Aluminum bodies with steel jaws drop forged from steel bar. These wrenches are available in straight handle in iron or aluminum lengths from 6� through 48�. A special purpose heavy duty adjustable wrench designed for use on iron or steel pipe and pipe fittings.