-Straight Pipe Wrenches have a sturdy, ductile-iron housing and an I-beam handle with a full floating forged hook jaw, featuring self-cleaning threads with replaceable hook and heel jaws. -Heavy-duty pipe wrenches comply with federal specifications GGG-W65IE, Type II, Class A. -Featuring self-cleaning threads with replaceable hook and heel jaws. -RIDGID Pipe Wrenches are designed to bend before it breaks and will not slip.