Drill bushing for use in a metal tooling plate
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United States of America Patent
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-
May 26, 1981
Grant Date -
N/A
app pub date -
Mar 14, 1980
filing date -
Mar 14, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A press-fit drill bushing for use in metal tooling plates has a circular cylindrical shank, and a toothed crown with an annular groove between the shank and the crown. The ends of the teeth adjacent the groove are disposed at an angle between zero and five degrees positive so that they form chips which are automatically packed into the groove as the bushing is pressed into a tooling plate.
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