Safe lock drilling apparatus

Details Safe lock drilling apparatus Safe lock drilling apparatus

1984-05-14

1986-04-29

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

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

Movable relative to tool along tool-axis

408136, 408712, B23B 3900

Patent

active

045853762

ABSTRACT:
A safe lock drilling apparatus comprising a jig adapted to straddle the lock of a safe that it is desired to drill out and hold a drill motor and bit in a pre-aligned adjustable relationship to the lock thereby allowing the bit to be held perfectly still and at a fixed angle while drilling.

REFERENCES:
patent: 668137 (1901-02-01), Bradley et al.
patent: 801350 (1905-10-01), Williams
patent: 2625063 (1953-01-01), Hanson
patent: 2831376 (1958-04-01), Daniels
patent: 3100408 (1963-08-01), Pufahl
patent: 3288183 (1966-11-01), Eisbrenner
patent: 3464295 (1969-09-01), Gallion
patent: 3874810 (1975-04-01), Russell
patent: 4082474 (1978-04-01), Stiger

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