Bit structure for powered tools
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United States of America Patent
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N/A
Issued Date -
Oct 28, 2010
app pub date -
Aug 31, 2007
filing date -
Aug 31, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A bit structure for powered tools includes a shank action end at one end of a bit and a tool gripping section at another end. The shank action end has a conical directing portion formed by extending rearwards from a front edge of the shank action end. The directing portion is extended rearwards to form an expansion bore cutting section between the shank action end and the tool gripping section. The expansion bore cutting section has at one axial cutting edge formed at a length equal to or greater than the maximum diameter of the directing portion. The bit structure thus formed can simultaneously perform multiple functions of drilling holes, expanding holes and fastening screws faster with less time and effort.
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