Wrench ends pivot so it can be used to loosen or tighten nuts or bolts in confined spaces. One end equipped with open-end socket; other end, with double-hexagon socket. Heads pivot on pins. Pins fit tightly so heads do not flop; friction on pins sufficient to hold heads in positions until rotated intentionally.
Pivoting-Head Wrench
NASA Tech Briefs ; 17 , 9
1993-09-01
Miscellaneous
No indication
English
Connection structure connected between wrench head of torque wrench and socket
European Patent Office | 2020
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