| 摘要 |
The invention relates, on the one hand, to tools of the screwdriver type used for manipulating screws provided with a slot and, on the other hand, tools of the male hexagon key type used for manipulating screws provided with a (female) hexagon socket. Each screwdriver makes it possible, by itself, to manipulate equally well a screw provided with a slot or a screw provided with a female hexagon key. The active part of the tools consists of the association of a tool of the screwdriver type, and of a tool of the male hexagon key type; that is to say that the shape for cutting into a screwdriver bit is made on the end of the male hexagon key and that it is symmetric with respect to one of the diagonals of the hexagonal cross-section of the bar forming the male hexagon key. The main application thereof is the screwing and unscrewing of screws provided with a slot or with a hexagon-head socket. <IMAGE>
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