UPDATE: This model has customizable bit hole diameter settings. Use the “Customize” button to change the diameter of the bit holes if your printer prints them too snug or loose. The default diameter for the profile is 3.5mm. There is a profile for a hole size tester included so you can get an idea what works best on your printer. Print the Hole Size Test profile and if 3.5 is too tight, verify the correct size and use the “Customize” button on the main model to change the diameter to that which is best for your printer.

I found a similar design to this on another platform but when printed the tolerances were too tight and the tool didn't fit. I created a new design from scratch resembling the original but with proper tolerances. This version fits the tool well and has space for additional deburring tips.