| 摘要 |
A driving device includes a hollow holding member having one portion that has a retaining section formed on an intermediate section of an inner periphery thereof. The retaining section includes two mutually facing stepped surfaces that together define a tapered space therebetween for securely holding one of two angled sections of a hexagonal wrench. The other portion of the holding member includes a bottom wall that includes a notch defined therein for securely holding the other of the angled sections.
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