PurposeUsed in limited access area on entry doors to install bolts and screwsWrench VariationDouble EndWrench Size5/16Opening Shape12Wrench End TypeBox EndWrench Body TypeOffset-ZDrive TypeHandleHead Thickness0.20Second Wrench End TypeBox EndSecond Wrench End Size5/32Second End Opening Shape12Where UsedEntry doorsOffset Height6.00Overall Length7.40