Hexagonal tool bit set

Details Hexagonal tool bit set Hexagonal tool bit set

1998-12-08

2000-08-29

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

7128, B25B 2300

Patent

active

061091472

ABSTRACT:
A tool providing a plurality of tool bits, each having a different polygonal (i.e. hexagonal) external contour. The tool includes an inner member and an outer sleeve member. The inner member defines a small tool bit having a polygonal external contour. The outer sleeve member includes a cavity that selectively receives the inner member. The inner member and the outer sleeve member together define, when the inner member is received within the cavity, a large tool bit having a polygonal external contour of the same shape, but a larger size, than the inner tool bit. In this manner, the small tool bit may be used when the inner member is withdrawn from the cavity and the large tool bit may be used when the inner member is received within the cavity.

REFERENCES:
patent: 2173042 (1939-09-01), Picard
patent: 2405130 (1946-08-01), Bloomfield
patent: 2735325 (1956-02-01), Rudd, Sr.
patent: 2822714 (1958-02-01), Paparelli
patent: 2951405 (1960-09-01), Engquist
patent: 3127798 (1964-04-01), Gol
patent: 5062173 (1991-11-01), Collins et al.
patent: 5287778 (1994-02-01), Cook
patent: 5491856 (1996-02-01), Legg
patent: 5592859 (1997-01-01), Johnson et al.

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