The 9081-M Five-Axis Aligner makes aligning a laser beam through a tube simple. Turning both X screws or both Y screws equal amounts in opposite directions gives you tilt or pivot about the center of the plate. Turning them in the same direction gives you pure translation. Z adjustment allows precise translation along the optic axis. It includes a removable mounting platform. The 9081-M has (7) M6 tapped holes and (2) M4 tapped holes. Patent Number 5,303,035