Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Vijitha Weerasinghe0
Date of Patent
April 12, 2011
0Patent Application Number
105699620
Date Filed
August 27, 2004
0Patent Primary Examiner
Patent abstract
A twist drill partially coated with TiN to increase wear resistance whilst minimising the transfer of coating particles to a work piece. The drill is selectively coated on the rake face (42); the land (46) is not coated.
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