Insulated handle to prevent electrical shockA reversible 5/16” ratcheting box wrench reduces service timeNickel plated for durability and corrosion resistanceUsed on most GM side terminal batteries or any 5/16" battery terminal boltThis tool is used on most GM side terminal batteries or any 5/16” battery terminal bolt. It has an insulated handle to prevent electrical shock and a reversible 5/16” ratcheting box wrench. It is nickel plated for durability and corrosion resistance.