Drill guide

Details Drill guide Drill guide

1978-10-30

1979-12-18

Briggs, William R.

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

408110, B23B 3900

Patent

active

041792319

ABSTRACT:
A tool guide, particularly for an electric hand drill, to affix to a drill and guide it in drilling a hole perpendicular to a surface. The guide has drill holding means which incorporates a manually adjustable locking mechanism which allows for the ready accommodation of drill bits of different sizes. The guide has also drill fixing means onto its drill holding means to instantly, firmly and independently hold the guide onto the drill during operation.

REFERENCES:
patent: 1299938 (1919-04-01), Hathaway
patent: 1316028 (1919-09-01), Halbreich
patent: 1590643 (1926-06-01), Neuwelt
patent: 2360942 (1944-10-01), Ellerstein
patent: 2622458 (1952-12-01), Jenkins
patent: 2883891 (1959-04-01), Shulters et al.
patent: 2997900 (1961-08-01), Pugsley
patent: 3293953 (1966-12-01), Hendrick
patent: 3833313 (1974-09-01), Gallion
patent: 3874810 (1975-04-01), Russell
patent: 4105359 (1978-08-01), Schneider

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