Fixed Torque Wrench Handle – 2.5Nm by A_R_B on Thingiverse.

Metal bar is a hex shank to ¼" driver drill bit adapter. Measured torque is an incredible 2.54Nm!

Prusa Mk3S: 0.2mm resolution, 0.4mm nozzle, Prusament Ultramarine Blue PETG. Print time 6 hours.