Channellock 810NW Adjustable Wrench Black Phosphate Coated, 10-Inch 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 Four thread knurl and non-protruding jaws provide greater capacity; minimal head width improves performance in confined spaces Black Phosphate finish