Tool bit
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United States of America Patent
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Apr 21, 2015
Grant Date -
Aug 7, 2014
app pub date -
Feb 6, 2013
filing date -
Feb 6, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A tool bit includes a plurality of fins each having first and second ends and extended radially and longitudinally and including the second end thereof forming two opposite lateral sides each including a reinforcing section extended therefrom. Two adjacent fins of the plurality of fins form a recess therebetween, which has a curved periphery interconnecting two adjacent reinforcing sections of the two adjacent fins. Each fin defines a first length from the end thereof to the curved periphery of the recess extended from the second end thereof. The first length is smaller than a second length defined between two opposite peripheral sides of a hexagonal periphery of a connecting end of the tool bit.
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