Sherwood Router Lift Insert Rings

Bought a X1C and needed something to print and to learn FreeCAD.
Sherwood Router Lift Insert Rings are expensive so I recreated them in FreeCAD.
Printed in PETG HF (note: if printed in PLA, the ring does not sit flush with the lift bed)
Use a negative cylinder to make hole for the bit and either add raised or negative text for size information. 
I used negative and a white paint pen.
I intentionally lifted an over size router bit into the ring and confirmed that nothing catastrophic happened. See photo.

Hope someone will find them useful.