The Ridgid 31040 complies with federal specifications GGG-W65IE, Type II, Class A This pipe wrech has 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. Features: Straight Pipe Wrenches have a sturdy, ductile-iron housing and an I-beam handle with a full floating forged hook jaw  Self-cleaning threads Replaceable hook and heel jaws Specification: Size: 1200mm (48in) Capacity: 150mm (6in)