| 摘要 |
An improved structure of the bearing base for a foldable hex-key wrench set. The both ends of the bearing base are mounted with several hex-key wrenches respectively. The bearing base comprises two bearing plates formed into L-shaped members. The two bearing plates may be set, with bolts, at different widths by means of bolts having different lengths so as to mount on the bolts a different number of wrenches; therefore, one bearing base can accomodate different wrench set having different number of hex-key wrenches.
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