Dowel hole-boring jig

Details Dowel hole-boring jig Dowel hole-boring jig

1977-07-05

1978-06-06

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Work-gripping clamp

408 72B, 408115R, 33185R, B23B 4900

Patent

active

040933946

ABSTRACT:
A boring jig is provided having at least one drill bit guidance hole and having two clamps for holding the work. Provision is made for passing the drill bit through the guidance hole in one direction to drill a first work piece held under one clamp, then consecutively to pass the drill through the same guidance hole in the opposite direction to drill a mirror-image hole in a second work piece held under the other clamp.

REFERENCES:
patent: 2260784 (1941-10-01), Morton
patent: 2934979 (1960-05-01), Hartje
patent: 3708237 (1973-01-01), Kruse

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