Use wrench on external hex of tool for situations exceeding 90 lb/ftFits internal hex on many late model sportbike axles and some dirt bikes3/8'' square drive on both ends rated to 90 lb/ftWeighs only 2.5 ozMade in the USAFor touring and trailside use only.EU: use wrench on external hex of tool for situations exceeding 122,02 NmEU 3/8'' square drive on both ends rated to 122,02 NmEU: Weighs only 70.87 grs