-Drop Forged, Heat Treated Jaws and Nuts -Heavy Duty Cast I-Beam Handles -Precision Machined Teeth Hold Pipe Securely ... head and the handle 4.size: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 ...