Table grommet - parametric

I added 60, 70 and 80mm grommets in the base (18mm deep). The size of the grommet is always approx. 0.8 mm larger due to the elimination of inaccuracy during drilling. 

If you need a different dimension I can create…

Note: Alternatively, it is possible to create your own parametrically - see the attached file for the Autodesk Fusion 360 program.