Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 24, 2009
Patent Application Number
11484488
Date Filed
July 11, 2006
Patent Primary Examiner
Patent abstract
A rotary tool accessory for shaping hard, brittle material is disclosed. In one embodiment, a work portion includes a first flute extending from one end portion of the work portion toward the other end of the work portion and a first land adjacent to the first flute. A first leading edge is located between the first flute and the first land and at least one recess extends from the first leading edge into the first land. An abrasive material is located at the surface of the first leading edge.
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