The Channellock 8" WideAzz Adjustable Wrench features Code Blue grips that are designed for durability and comfort. Longer jaws grip better, Thinner jaws give greater access in tight spaces. 4 thread knurl & non-protruding jaws provide greater capacity; minimal head width improves performance in confined spaces. Precise jaw design grips tight the first time, every time. Measurement scales (in. on front mm. on reverse) are handy for sizing nuts, pipe and tube diameters. Chrome Vanadium steel construction. Extra Wide opening to 1-1/2".