Corner Pipe Wrench Bahco 142, 1 1/2" blackened and rust-free. This universal pipe wrench is blackened and corrosion-resistant, made from high-alloy, hardened steel. The teeth are induction-hardened, and the outer handle is made of hardened sheet steel. It features an optimized design with narrow jaws for better access in hard-to-reach places. The patented, progressively inward-angled teeth and the small teeth in the rear gripping area ensure a secure grip on all pipe sizes.