Self centering drilling tool

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Frictionally engaging sides of opening in work

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Details

408 82, 408112, B23B 5100

Patent

active

056497938

ABSTRACT:
The present invention is a self centering drilling device and is more particularly concerned with the aspect of precise location for removal of material with various sizes of drill bits, using the same drill bit holder.

REFERENCES:
patent: 347925 (1886-08-01), Deno et al.
patent: 2224480 (1940-12-01), Kartarik
patent: 2294303 (1942-08-01), Jagow
patent: 2296087 (1942-09-01), Burns, Jr.
patent: 2792726 (1957-05-01), Vick
patent: 5318390 (1994-06-01), DalBianco

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