Drill bit and method of use thereof
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United States of America Patent
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-
Apr 16, 1985
Grant Date -
N/A
app pub date -
Jan 17, 1983
filing date -
Jan 20, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The cutting edge of a bit of a rotary drill comprises an agglomerate of natural or synthetic diamond mounted at the free end of a shank freely rotatable in a socket in the body. Preferably the agglomerate and the free end of the shank are cold swaged together and preferably a resilient spring is interposed about the shank between the body and the free end.
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