Opening width: max. 38mm 45% thinner jaws, compared to a standard adjustable wrench Scale in mm for pre-adjusting and accurate measurement 40% wider opening compared to a standard adjustable wrench of equivalent size, and 45% thinner jaws, compared to a standard adjustable wrench of equivalent size Precision-hardened and anti-corrosion treated Comfortable slip free, warm thermoplastic handle and phosphate finish 40% wider opening compared to a standard adjustable wrench of equivalent size, and 45% thinner jaws, compared to a standard adjustable wrench of equivalent size Precision-hardened and anti-corrosion treated Comfortable slip free, warm thermoplastic handle and phosphate finish