I wanted to made print in magnets so you dont have to click the tools in. 

I used Magnets ⌀5x1mm. I used this Magnets from amazon.
I made a second version on request for ⌀6x3mm magnets. 

The design is made for this deburring tool

What you need:

• 6x M3x20mm Screw
• 30x Magnets ⌀5x1mm
  or 30x Magnets ⌀6x3mm

For Printing:

You have to stop the print of the lid to put the magnets in. 

Here is a little Video that shows you how its done in cura: