Hex wrench assembly
A hex wrench assembly includes a tubular body having a reinforcement protrusion extending radially outward from a mediate portion of the body. A plurality of passages are defined in the body and a plurality of recesses are defined radially in an outer periphery of the body. Each recess shares a common axis of respective one of the passages. The head of a hex wrench is inserted in the passage and the handle of the wrench extends out from the recess.
B
B25G
inventional
Wei-Yuan
Liu