All-ceramic drill bit
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United States of America Patent
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Jun 24, 1997
Grant Date -
N/A
app pub date -
Jun 6, 1995
filing date -
Jul 14, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is an all-ceramic drill bit which combines the positive properties of ceramic with a tool geometry adapted to the special features of the material. The drill bit is formed with a groove for the shavings which extends in the axial direction linearly along a surface line.
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