Nozzle torque wrench 2.5Nm

Using this rotor in G.design's model you can reach 2.5Nm of torque

For the maximum accuracy use Prusament ASA (possibly galaxy black) and the provided 3mf files 

There's also a more conservative version (2.3Nm) usable with stiffer materials like PLA or polycarbonate (both non tested) 

Right after printing use the wrench 5-10 times on a fixed bolt so the material starts behaving correctly 

The 2.5Nm value is suggested by prusa itself (https://help.prusa3d.com/article/changing-or-replacing-the-nozzle-mk2-5s-mk3s-mk3s_2069)

E3d even suggests 3Nm but i preferred the more conservative option (https://wiki.e3d-online.com/E3D-v6_Assembly#:~:text=You%20want%20to%20aim%20for,finger%20on%20a%20small%20spanner)