Drill sharpening gauge

Details Drill sharpening gauge Drill sharpening gauge

1979-10-01

1980-10-14

Martin, Jr., William D.

Geometrical instruments

Gauge

Tool

G01B 502, B27G 2300, B23B 300

Patent

active

042273129

ABSTRACT:
This invention relates to a drill sharpening gauge which can be positioned close to an abrasive motor-driven wheel so that the operator can quickly check the length of the edges of the drill bit at the tip of the drill to insure that both edges are the same length and thus the angles are equal, and with present manufacturing technology the drill sharpening gauge of this invention is one that can be easily and economically made.

REFERENCES:
patent: 51248 (1865-11-01), Wells
patent: 464290 (1891-12-01), Taylor
patent: 1506618 (1924-08-01), Durham
patent: 2547284 (1951-04-01), Rabuck
patent: 2778122 (1957-01-01), Oleksin
patent: 2840921 (1958-07-01), Swanson
patent: 3184860 (1965-05-01), Garrison
patent: 3838521 (1974-10-01), Peterson

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