SPINDLE FOR PRECISION MACHINING INNER GROOVES SPINDLE FOR PRECISION MACHINING INNER GROOVES

摘要

The invention concerns a spindle (1) for machining inner grooves and comprising a cylindrical input guide (15) of diameter D1 and a cutting portion (20). Said spindle is characterized in that the cutting portion (20) is subdivided into a plurality of cutting sections (25) separated by realigning guides (26) having a diameter equal to diameter D1 of the input guide (15), so as to accurately centre the grooves relative to the hole previously machined in the workpiece (30).