Reflective drill guide

Details Reflective drill guide Reflective drill guide

1975-10-07

1977-05-17

Corbin, John K.

Optics: measuring and testing

Angle measuring or angular axial alignment

408 72B, 408115R, G01C 100

Patent

active

040239071

ABSTRACT:
A disposable drill bit guide for optically guiding a drill bit in a manner normal to a workpiece, and having, a sheet of relatively thin disposable material said sheet having a reflective surface for providing a reflective image of a drill bit, adhesive means on said sheet for adhesively fastening same on a workpiece with said reflective surface exposed to view, and visible guide lines on said sheet, said guide lines intersecting one another at right angles, whereby a drill bit may be centered on such intersection and its image viewed in said reflective surface, and checked with reference to said guide lines.

REFERENCES:
patent: 2862302 (1958-12-01), Lucia
patent: 3436155 (1969-04-01), Perin

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