Grinding device

Details Grinding device Grinding device

1986-09-25

1988-05-17

Whitehead, Harold D.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51219R, 51173, B24B 1900

Patent

active

047441780

ABSTRACT:
A hand held grinding device for sharpening drill bits comprises a pair of bearing members which rotatably support a grinding wheel fast on a shaft. Portion of the shaft is engagable with the chuck of a drill. A guide plate with grooves for various size ranges of drill bits is hingedly connected to the bearing members by a plastics hinge. The grooves direct the drill bit to the grinding wheel at an angle of 59.degree.. By pivoting the guide plate relative to the bearing members, the trailing portion of the cutting edge of the drill bit is relieved.

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