Features and Benefits: * Longer jaws grip better, avoiding slippage or nut round off * Measurement scales (in. on front mm. on reverse) are handy for sizing nuts, pipe and tube diameters * Greater jaw capacity supports larger nuts and bolts * Thinner jaws for greater access in tight spaces * Precise jaw design grips tight the first time, every time 4 thread knurl and non-protruding jaws provide greater capacity; minimal head width improves performance in confined spaces. Chrome Vanadium steel construction.