Countersink tool assembly

Details Countersink tool assembly Countersink tool assembly

1990-07-31

1991-11-19

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

408113, 408202, B23B 5100

Patent

active

050661728

ABSTRACT:
The countersink tool assembly of the present invention is rotatably driven by a conventional drill apparatus and includes an insert having a central aperture and two diametrically opposed ears which extend into the central aperture. A multi-fluted countersink tool is concentrically mounted within the aperture such that the diametrically opposed ears extend into the flutes of the countersink tool at a desired axial location. The ears are adapted to engage and follow the contour of the curved outer wall surface which concentrically surrounds the hole. As such, the countersink tool assembly translates rectilinearly with respect to corresponding changes in the curved contour of the outer wall surface.

REFERENCES:
patent: 332308 (1885-12-01), Valentine
patent: 631572 (1899-08-01), Judson
patent: 2317615 (1943-04-01), Johnson
patent: 2344143 (1944-03-01), Harding
patent: 2422279 (1947-06-01), Zimmer
patent: 3104563 (1963-09-01), Gulley
patent: 3877099 (1975-04-01), Halpern
patent: 4580933 (1986-04-01), Wilkins
patent: 4869625 (1989-09-01), Stone

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