Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 6, 2011
Patent Application Number
12033057
Date Filed
February 19, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A shank that has one end adapted to be connected to a chuck of a rotary tool. The opposite end of the shank supports a cutting head having a series of teeth formed on the edge thereof for cutting the periphery of the hole. A screw tip may be provided for feeding the bit into and through the wood. A plurality of cutting blades are provided for boring the interior of the hole. The cutting blades define a plurality of cutting edges that are disposed at different angles to a plan perpendicular to the axis of rotation.
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