TOOL AND METHOD FOR THE FINISHING OF VALVE SEATS AND GUIDES

摘要

It is proposed to provide a tool for the final machining of a valve seat and valve guide in a cylinder block of a combustion engine of a motor vehicle, said tool having a first section with at least one first blade for machining the valve seat and a second section with at least one second blade for machining the valve guide. The tool is characterized in that a separation site ( 13 ) is provided between the first section ( 5 ) and the second section ( 9 ), said separation site comprising a cone ( 15 ) and a conical recess ( 17 ) capable of receiving said cone.