作者: Gordon C. Sharpe
DOI:
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摘要: A fastener tool for tightening obstructed fasteners is disclosed. handle and a blade made of flat metal are pivotably attached at two ends. One end the bent to form tip having generally straight outside edge inserting into head. The may additionally include substantially half circle projection from middle line segment use with cross-slotted or Phillips type heads. also be slightly outwardly convex.