Metal bonded drilling and/or chamfering tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 16, 2003
Grant Date -
Mar 28, 2002
app pub date -
Sep 26, 2001
filing date -
Sep 26, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A metal bonded drilling tool which is improved in grinding performance with a long life and can drill a hole in a dry condition without the need for water. The metal bonded drilling tool includes a cylindrical body having an open front end portion, a shank integral with the cylindrical body and having a threaded hole for use in mounting the tool to a rotary tool, and numerous abrasive grains bonded to a front edge of the cylindrical body and to inner and outer cylindrical surfaces of the front end portion of the cylindrical body by a bond member formed primarily of copper alloy.
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