Gridfinity refined 4x pen holder - 13.5mm for Embedded Magnet Dispenser Tool for 3D Prints

Increased the hole size to 13.5 mm for the Magnet Dispenser 6x2 mm

Edit:
2024-07-02: V3.2. Changed the magnet height to 2mm from 1.9mm and the holesize to 13.5mm for a better fit.