Hi Pablo,
Any milling tool/bur rated for your milling machine will work on zirconia however here are some things to consider.
Diamond Burs will always be your best choice for zirconia, you will see that even with diamond burs you will get a different amount of units based on the quality of the diamond bur, so cheaper is not always better.
For wax and PMMA you may notice that with diamond burs you will get gumming up on the diamond coating so it is better to use a carbide bur.
Feel free to contact me with any questions and also good recommendations for burs and life span of the burs.