[HomeCNC]

That is indeed a quick change collet system. But what I want is not only that but I want to hole pre-set tooling. I don't want to set my Z depth every time I change a bit. With holders that you dedicate to a tool you can measure it's length and if you don't break the bit or dull it you will not need to zet the z depth for it. You will just need to tell it length in the tool offset menu of the controller.