Starting from the excellent existing model of drilling bounding ring I designed my own using parametric features from Fusion 360 and added nice features like printed diameter size
I tested it from 4mm to 12mm drill bits (The range I mostly use) but should work for any other diameter
Printed in PETG (For "elasticity) Prusament Orange with 0.2mm layer height and 3 perimeters
You'll need M4x12 or M4x16 screw and M4 nut to tighten the drill bit.
On top of .stl and .3mf files I uploaded Fusion 360 .f3d one so you can modify the design and adapt it to your needs
Enjoy
If you like this model, take a look also at my other designs
EDIT 01/07/2022
Add (again?) .f3d file that was missing
EDIT 16/11/2023
If you're looking for Imperial sizes depth stops here it is → https://www.printables.com/model/646608-drilling-depth-stops-imperial-remix
The author remixed this model.
Add parametric features from Fusion 360 and printed diameter size