Laguna Tools Smartshop Composite Fabricator 16 Manual page 45

Using the Vacuum Table & Vacuum Zones-
The table has holes in each zone that extract the air and generate the vacuum.
The table has grooves that ensure that the air is extracted evenly across the zone.
T-Slots are also provided to allow you to clamp jobs /
spoil boards to the table should it be required.
Clamp & T-Slot