Drill bit adapter

Details Drill bit adapter Drill bit adapter

1997-08-07

1999-04-13

Bishop, Steven C.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

279143, 279 60, B23B 5112

Patent

active

058936890

ABSTRACT:
A new drill bit adapter for permitting use of drill bits which do not fit on a drill chuck which is provided with an electric drill. The inventive device includes an adapter chuck having a chuck body and an adapter shaft extending from an end of the chuck body. The shaft is sized for being retained by the drill chuck on the electric drill. The opposite end of the chuck body retains drill bits of a size which cannot be retained by the drill chuck. The drill bits are retained by a key operated retaining system, or by a hand tightened system, both of which are conventional.

REFERENCES:
patent: 2588267 (1952-03-01), McLaughlin
patent: 2908144 (1959-09-01), McManis
patent: 3932904 (1976-01-01), Nilsson et al.
patent: 4087195 (1978-05-01), Wood
patent: 5651647 (1997-07-01), Ray
Trend-lines Catalog No. 515D, p. 43, 1995.

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