| 摘要 |
An adapter to place over a drill bit and the chuck of an electric hand drill to convert it to a power screwdriver, which includes a hollow body with tapering shoulders and an elongated tubular nose having a forward socket for a screwdriver bit, and three spring biased detents to pivot into key holes in the chuck to cause the adapter to rotate with the chuck, the body being of a size to receive said chuck and drill bit completely inside the body.
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