PurposeTo adapt keller ratchet drive wrench to a multiple of BACC30M collar sizes without changing the basic size of wrench and to reach into offset positions. This tool is also used for HL70 Hi-lok collars and BACC30BH collars.Used WithKeller ratchet drive wrenchWrench Size1/4Opening Shape6Wrench End TypeSocketWrench Body TypeStraightWrench VariationStandardDrive TypeExternal HexDrive Size7/16Head Outer Diameter0.50Overall Length6.37Fastener NumberBACC30M 