Cutting tools with depth indication

Details Cutting tools with depth indication Cutting tools with depth indication

1989-01-11

1990-02-27

Howell, Daniel

Cutting by use of rotating axially moving tool

With signal, indicator, illuminator or optical means

83835, 408116, 408227, B23B 5102, B27B 3308, B23D 6102

Patent

active

049041304

ABSTRACT:
A drill bit, circular saw blade, milling head or other cutting tool on which are disposed a repeating series of color coded marks spaced uniformly at small predetermined increments so that they can be seen and distinguished while the tool is in use and can therefore be used as depth gauges for cutting, shaping or drilling to a desired depth.

REFERENCES:
patent: 88649 (1869-04-01), Machauer
patent: 117237 (1871-07-01), Abbott
patent: 850480 (1907-04-01), Jernigan
patent: 1984839 (1934-12-01), Murray
patent: 2219605 (1940-10-01), Turkel
patent: 3349647 (1967-10-01), Stan
patent: 4527449 (1985-07-01), Sydlowski et al.

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