Take a look at Festool’s MFT 3 table system. It is a grid of 20mm holes, spaced at 96mm on center. There are many time saving and convenient tools made to take advantage of them, and many more custom stuff that craftsmen build to make things easier.
Without a CNC it is frustrating to drill those holes reliably square enough to use them in downstream operations like squaring cuts or aligning/spacing.
Without a CNC it is frustrating to drill those holes reliably square enough to use them in downstream operations like squaring cuts or aligning/spacing.