Rotationally and axially restrained drill bit and chuck assembly
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United States of America Patent
Stats
-
Feb 5, 1991
Grant Date -
N/A
app pub date -
Jan 29, 1990
filing date -
Jan 29, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drill bit and chuck for interconnection with the end of a flexible drive shaft which axially and rotationally restrains the drill bit against becoming separated from the chuck during an operation requiring bone drilling, for example. The drill bit drive end has an eccentrically mounted boss with an enlarged head. A collet has an internal wall with an eccentric opening for receiving and locking with the drill bit boss head. The opposite end of the collet is staked onto the flexible shaft.
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