PurposeUsed on 777 spoiler actuator fitting C/C 121 and 105Wrench VariationStandardWrench Size15/16Opening Shape12Wrench End TypeBox EndWrench Body TypeOffset-ZDrive TypeInternal SquareDrive Size3/8Center-to-Center Distance4.00Used WithTorque WrenchWhere Used777 Spoiler Actuator C/C 121 and 105