Every milling bur in this collection has a 6 mm shank, so you can shop by your spindle's collet size.
It includes original Aidite burs for zirconia, PMMA, PEEK, wax, titanium, cobalt chrome and glass ceramic for the Aidite AMM-520 Pro, AMM-580 and AMW-400 series. The zirconia burs also fit the 6 mm configurations of the AMM-530, AMD-500S Pro, AMD-500DCs, AMD-500DC and AMM-520. Tool positions differ between machines, so order by the Aidite MB part number on the product page.