M3 double nut thumbwheel

For use with M3 double nuts used as fasteners.

I use it for the spring-loaded bed-leveling double-nuts on my prusa mendel 3d printer

You can tighten/loosen one or two nuts at a time. Usually in such fasteners, one nut sets the tension and the second nut is used as a lock nut.

Tags: accessory bed finger level M3 mendel nut printer prusa rosette thumb thumbwheel wheel