The Channellock 812PW reversible jaw, extra wide adjustable wrench features an additional pipe wrench jaw option making these strong and reliable wrenches more versatile than ever. The reversible jaw makes simple work on bolts and fasteners as well as on round stock. The self-gripping angled teeth design grip pipe and rounded fasteners tight the first time, every time. With a 4 thread knurl and non-protruding jaws, the 812PW provides greater capacity while improving performance in confined spaces with its minimal head width. Constructed with chrome vanadium steel for durability.