M4 Turnable Wheel Adapter

grabcad

I was looking to torque up an M4 nut on the fly, yet their tiny size had me feeling trapped and limited, with no desire to spring for a pricey specialized tool kit. Thankfully, this fast and furious 3D printed fix lets one snugly fit a run-of-the-mill M4 nut, transforming it into a clever adjuster that can be effortlessly dialed in by hand, all while spinning a makeshift wheel at its core.