COMBINATION TOOL AND METHOD FOR MACHINING A BORE AND THE SURFACE OF SAID BORE, AND CUTTING BODY FOR A COMBINATION TOOL OF THIS TYPE

摘要

To permit highly precise machining of a valve seat (26) and a valve guide, thecombination tool has an extensible chuck (4) that is in particular hydraulicand is designed to hold a fine lathe for machining the valve guide. Severalcutting plates (20) that are positioned in particular tangentially aresituated around the periphery of said tool. The plates are preferably fixed ina cassette (14), which can be adjusted both in an axial direction (29) and aradial direction (31).