Flat beaded double end track bit

Details Flat beaded double end track bit Flat beaded double end track bit

1975-10-06

1976-08-17

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

Tool or tool with support

Having peripherally spaced cutting edges

408229, B23C 5100

Patent

active

039751104

ABSTRACT:
The improved flat beaded track bit disclosed herein comprises an elongated, generally rectangular member having first and second ends separated by a middle section. First and second drill bodies are formed on the first and second ends, respectively, of the member, with the drill bodies being identical, but mirror images of each other. The lands of the first and second drill bodies terminate adjacent to the middle section of the member, and the diameters of the lands of the drill bodies are larger adjacent to the first and second ends of the member than adjacent to the middle section of the member.

REFERENCES:
patent: 1131991 (1915-03-01), Bocorselski
patent: 2977828 (1961-04-01), Strickland

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