Self-indexing power feed rib bolt drill

Details Self-indexing power feed rib bolt drill Self-indexing power feed rib bolt drill

1990-09-28

1992-05-12

Howell, Daniel W.

Cutting by use of rotating axially moving tool

Processes

Bit detachable

408 99, 408103, B23B 4514

Patent

active

051121662

ABSTRACT:
The invention relates to a drilling apparatus that can position a drill at the precise center between two overlapping flanges and clamp at that position while a self feeding drill drills a hole.

REFERENCES:
patent: 793146 (1905-06-01), Nolan
patent: 3679320 (1972-07-01), Bohorquez et al.
patent: 4679969 (1987-07-01), Riley
Doler Catalog, p. 3.3.

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