ROOF DRILL BIT AND ASSOCIATED COUPLER
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United States of America Patent
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Issued Date -
Jul 20, 2017
app pub date -
Jan 19, 2016
filing date -
Jan 19, 2016
priority date (Note) -
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Abstract
A coupler for use with a roof drill bit includes an elongate coupler body having a forward end for removably attaching the roof drill bit thereto and a rearward drive end. The elongate coupler body contains an interior bore therein and a dust port formed on an outer surface of the elongate coupler body, wherein the dust port is in communication with the interior bore.
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