RIDGID 31100 818 18" Aluminum Straight Pipe WrenchRIDGID 31100 818 18" Aluminum Straight Pipe Wrench RIDGID Aluminum Pipe Wrenches provide professional strength in lightweight aluminum. The Aluminum Straight Pipe Wrench offers the same durability and ease of use found in all RIDGID heavy duty wrenches. Features: Nearly 40% lighter than comparable cast iron models of the same size. Jaws and all other parts are identical to RIDGID Heavy Duty Wrenches. Also available with special hook and heel jaws for