PurposeTo adapt ratchet drive wrench to a multiple of HI-LOK collar sizes without changing the basic size of wrench and to reach into off-set positions. IE BACC30BL series collarsWhere UsedLimited Access AreasWrench Size7/16Opening Shape6Wrench End TypeSocketWrench Body TypeStraightWrench VariationReduced DiameterDrive TypeExternal HexDrive Size7/16Head Outer Diameter0.55Overall Length4.46Fastener NumberBACC30BL 