Inner cutting edge

I am trying to create a wreath cutter, but cannot figure out how to generate the inner cutting edge so that the center section is cut out.

To make the imprint reach the edge set “imprint depth” to 0. The interior feature thickness will match the line thickness in the image. You can use the “experimental settings → thicken interior features” with a positive number to increase the thickness and a negative number to decrease it.

The inner holes in this model are quite small and may be difficult to cut.