Hand drill and adapter tool
OwnerJohn J. Brutschyinventor
Life of this patent
Estimating the term…
Abstract
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.
Claims4
A hand drill and adapter tool for use with hole boring accessories having tapered shanks and comprising in combination:
- a hollow elongated adaptor body threaded internally at one end thereof and having a tapered socket at the other end thereof, said socket taper diverging towards said other end of the tool, a section of the external surface of said adapter body being polygonally configured to receive thereon standard wrenches and ratchets;
- a stud member thread to threadedly engage the threaded portion of said adapter body and thereby serve as a feed screw for a hole boring accessory securable within said adapter body socket;
- a spring-loadable center punch integral with one end of said stud member;
- a cap member positionable non-rotatably and removably selectively on said one end of said stud member or in like fashion on said socket to thereby alternatively enclose said center punch and provide an impact-receiving end face therefor or expose said center punch and provide an impact-receiving end face for said socket portion of the adapter body, a pair of diametrically opposed handle elements projecting outwardly from and integral with said cap;
- and means for releasably locking a hole boring accessory non-rotatably within said tapered socket.
Dependencies are inferred from the claim text.