| 摘要 |
A hand drill and adapter includes an elongated adapter body which is threaded at one end and given a tapered socket at the other end. The adapter body is configured externally such that is can receive standard wrench and ratchet heads. A threaded stud member is provided which is threadable into the threaded end of the adapter body. A spring-loaded center punch is carried at one end of the threaded stud member and a cap member is removably positionable on the stud member over the center punch. The adapter body is given a set screw to releasably retain the shank of a drill bit within the socket. In a preferred arrangement the cap member is provided with handle elements to facilitate drilling in confined areas.
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