Metric slogging flat single ring spanner made of high tensile steel material for wear resistance and durability.The high-strength rectangular design shoulder weight and helps transfer power to the fasteners more efficiently.Widely used to tighten loose collars, lock nut wings and seal packing nuts, large bolts.Hand tools have built-in hanging holes that can be hung in easy-reach.Small wrench can be placed in the toolkit to use, which is convenient, practical, and convenient.Specification:Size: 27mm 30mmTotal Length: 265mm / 10.43", 275mm /10.83"Thickness: 16mm / 0.63"Material: High Tensile SteelFinish: Black OxidizedPackage Content:2 x Box Ended Wrench.