Every milling bur in this collection has a 4 mm shank, so you can shop by your spindle's collet size.
It includes original Aidite burs for zirconia, PMMA, metal and glass ceramic that fit the Aidite AMD-500, AMD-500DC, AMD-500E, AMD-500DCs (4 mm configuration), AMW-520 and CMM-600. Tool positions differ between machines, so order by the Aidite MB part number on the product page.