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Priority to ES1971171517UpriorityCriticalpatent/ES171517Y/en
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Publication of ES171517YpublicationCriticalpatent/ES171517Y/en
Improved screwdriver, which is essentially characterized by dispose embracing its stem, an expansion piece installed between a washer or fixed stop at a point of the rod itself and another fixed washer to a bushing or tube that hugs the screwdriver shank on which can move coaxially when maneuvering on a cap disposed at one end of such tube, while opposite said tube has an expansion that is open according to two slots perpendicular to each other, in order to be able to install in combination the head of a screw and part of the stem thereof. (Machine-translation by Google Translate, not legally binding)