Asymmetrical bone drill

Details Asymmetrical bone drill Asymmetrical bone drill

1988-12-22

1990-07-24

Stone, Cary E.

Dentistry

Apparatus

Tool bit

408 59, 408709, A61C 302

Patent

active

049432362

ABSTRACT:
A drill for forming a hole in material has a shank with at least a base surface positioned at an angle to a longitudinal axis of the shank and a side surface. A cutting element having first and second ends is eccentrically connected to the base surface in such a manner that a longitudinal axis of the cutting element is situated at a predetermined distance from a longitudinal axis of the shank. An outer surface of the body of the cutting element is defined by at least a front surface and a rear surface intersecting each other along at least a cutting edge. The rear surface is tapered toward the longitudinal axis of the shank so that only the cutting edge and the drill point engage the material and a substantial open area exists between the outer surface of the cutting element and the hole during the entire process of drilling.

REFERENCES:
patent: 4842451 (1989-06-01), Dugger

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