Kreg router tables and lifts only come with 3 inserts , 2 small and one very large with nothing inbetween. These inserts fill that gap making using intermediate sizes of router bits much easier and safer.

No supprt needed though I do recommend 0.12 layers as the overhanges are pretty steep in parts.

Added a Insert Removal Tool , Options for 1 part or 2 part. For the 2 part option print 2 ins and the tool and super glue the pins in . The two part option should have stronger pins as both parts are printed in the best origntation.