Draper expert cap adjustable wrenches with phosphate finish draper expert 52684 expert quality crescent type wrenches manufactured from chrome vanadium steel hardened and tempered with black phosphate finish polished profile and jaws jaws offset at 22176 the 150 200 250 and 300mm sizes have a graduated scale on the fixed jaws suitable for use in areas where chemicals and chrome plate can give off poisonous fumes display packed draper expert 52684 450 x 57mm cap adjustable wrench w