check your router manual. the depth adjusting screw mechanism (typically) has a limited range - the router body can be moved up/down within the housing 'stops.'
the second photo shows the collet - it should reach "down" nearly to the foot plate....
btw, adjusting to the 'factory pre-set' stop as shown in the first pix can be a real PITA.
I turn the router bit up, stack the spacer board on the foot plate, then stack the finger plate on top of that, then adjust the depth so you can just feel the bit tip at the surface of the finger plate.
Last edited by TomCT2; 03-18-2019 at 09:03 AM.