The magnetic holder for the “NITOMS Tape Removal Cutter” sold in Japan.
The openings for magnets are designed for press-fit installation, which requires a bit of force to properly press the magnet into place. (Magnet size: DIA 6mm x T 3mm)
Note: Actual images show prints from previous model file version. The component diagrams image represents the updated latest design.
This holder is available in two types:
Each type is available with two different tolerances:

The author marked this model as their own original creation.