Tool for removing e.g. broken screws from workpieces, comprises thread forming screw which can be secured inside threaded drilled core hole

摘要

The tool comprises a thread-forming screw (7) whose thread opposes that of the article (2) to be removed from the workpiece (1). The screw can be screwed into a core hole drilled in the article to be removed and this hole has a thread which also opposes that of this article.