PurposeTo be used as a back-up wrench o to align fittingsWrench VariationStandardWrench Size7/16Opening Shape12Wrench End TypeBox EndWrench Body TypeOffset-ZDrive TypeInternal SquareDrive Size3/8Center-to-Center Distance3.00Head Thickness0.40Used WithTorque WrenchOverall Length3.88Fastener NumberBACN11Z