Channellock extra wide adjustable wrench features a reversible jaw for work on bolts and round stock, and greater jaw capacity supports larger nuts, bolts, and pipe. Self-gripping angled teeth grip pipe and rounded fasteners. Longer, thinner non-protruding jaws provide better grip and give greater access in tight spaces. Measurement scales (standard and metric) are convenient for sizing nuts, pipe and tube diameters. Chrome vanadium steel construction.