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, the combination tool has an extensible chuck (4) that is in particular hydraulic and is designed to hold a fine lathe for machining the valve guide. Several cutting plates (20) that are positioned in particular tangentially are situated around the periphery of said tool. The plates are preferably fixed in a cassette (14), which can be adjusted both in an axial direction (29) and a radial direction (31).