We made a video introducing how to use the YoYoFactory Multi-tool. This small tool has four different functions:
Removing bearings (C, C- only)
Removing axles (M4 axle with hex hole)
Disassembling Loop2020 (adjusting the gap for Loop1080)
Of particular note, the string cutter part is situated deep in the body of the tool, so it is much safer than carrying a knife or scissors in your bag or pocket.