A rotary tool ejection technology utilizing manifolded air to eject contents from the cavities of a rotary cylinder. The cavities include orifices. The orifices are aligned with a channel positioned within the rotary cylinder such that fluid (including air and gas) in the channel exits the orifices. The orifices are assembled with porous inserts. Air entering the channel is ejected from the orifices, creating force acting on the contents of the cavity thereby causing ejection.