Proto Adjustable Wrench, 12" Tool Length, 1 1/2" Opening, Satin Chrome: * Extra-wide, perfectly square jaw opening enables precise nut-and-bolt sizing * Smooth-moving knurl allows easy thumb adjustments * Strong, chromium-vanadium steel with reinforced stress points provides excellent durability * Wrench Type: Adjustable * SAE/Metric: Metric * SAE * Opening Size(s): 1 1/2", 38mm * Opening Type: Adjustable