УНИВЕРСАЛЬНАЯ РАБОЧАЯ ЧАСТЬ ОТВЕРТКИ

摘要

FIELD: manual tools, namely for screwing-unscrewing fastening members with slit or cross groove. ^ SUBSTANCE: screw driver includes two working portions having grooves allowing their mutual movement. One of said working portions is mounted in square stem of screw driver. Other working portion engages through sleeve with nut arranged in threaded part of screw driver and it is spring loaded. First and second working portions are mounted in grooves of second and first working portions respectively with possibility for creating during their mutual stroke tool used for working with fastening members having slit or cross groove. ^ EFFECT: improved operating efficiency for different types of fastening members. ^ 4 dwg