DeWalt Drill Stop clear case insert

I took the original design, and remixed it with Mighty Mule's design https://www.thingiverse.com/thing:4900082, so get a insert for the clear case dewalt drill bits, but leverages the printed version of drill stops.

the collars are a bit finicky, so does the drill stops, some tend to break toward the top, not sure if it's my layer adhesion, or PLA being brittle. Will try PETG to see if that added flexibility will help me out here.