double end and flex head socket wrench

spark-plug wrench with jointed socket and rubber insert

The hinge pin (10) engages in a hinge sleeve of a leaf hinge part.

An apparatus featuring a unique box wrench having a dual hinged socket is shown.

A hinged socket wrench having an offset shank (20) with a first end (22) and a second end (24).

A second embodiment of the hinged socket wrench includes a second clevis (28) that is added to the second end (24) of the offset shank.