Drill bit retriever device

Details Drill bit retriever device Drill bit retriever device

1999-03-04

2000-04-04

Howell, Daniel W.

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

408200, 408204, 408226, B23B 5100

Patent

active

060453028

ABSTRACT:
A cutting tool assembly for cutting holes in a work piece is disclosed. The assembly includes a cutting tool member with a cylindrical cutting member, a shank member, and a guide means providing at least one guide surface tapering from the cutting member to the shank member to assist in removing the assembly from a hole cut in the work piece. Also disclosed is a conical guide member that fastens to a cutting tool providing a guide surface for the stated purpose.

REFERENCES:
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patent: 3648508 (1972-03-01), Hougen
patent: 3778180 (1973-12-01), Ostrom
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patent: 4244667 (1981-01-01), Timmons
patent: 4297059 (1981-10-01), Miyanaga
patent: 5092719 (1992-03-01), Zsiger
patent: 5205685 (1993-04-01), Herbert
patent: 5597274 (1997-01-01), Behner

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