Multi-Sandpaper Gridfinity bin

This is a Gridfinity bin to store sand paper disks such as those for the Bosch PSM 200 AES sander.It consists of two parts: Part A: width of 3 uPart B: width of 1.5 Part A is the main bin. Part B is optional with the purpose of a more space-efficient sand paper storage. You need to print part A at least twice to make use of part B.