The Woodpecker Micro-Adjust is made to move the router table fence in very fine amounts.
That tool is the one most often requiring precision adjustments, an order of magnitude finer than 1/32”. Just imagine making adjustments for stile and rail cutters or a lock miter bit. If you want parts to match exactly, or even get a panel to fit in the slots of a frame you have to work in the sub 1/100th inch realm. Or be willing to accept poor fits.