In some cases, when milling small details, the chip suction force can be too strong and lift or remove finished pieces.
As a solution to this problem we have a “reduction valve” that is included on all milling tools. Reduced suction is achieved by a number of drilled holes around an aluminium tube that has a plastic lock ring (see picture). The operation is very simple and straight forward; you only turn the plastic ring enough to open or lock the valve. The amount of false air can easily be adjusted to what is required for the actual job.