... Nuts -Heavy Duty Cast I-Beam Handles -Precision Machined Teeth Hold Pipe Securely Namer: 12inch US pipe wrench1. material:45#carbon steel/cast ... :8",12",14",18",24",30",36",42",48"12" heavy duty pipe wrench -Drop Forged, Heat Treated Jaws and Nuts ... -Heavy Duty Cast I-Beam Handles-Precision Machined Teeth Hold Pipe Securely- ...