MetricNutFastener

This little handy tool is made to screw nuts on metric rods, you can scale it up for any metric sized nut+rod. Just scale it by the factor equal to your rod diameter.
So for fastening a M4 nut you need to scale it by x4 ,for a M6 nut scale it byy x6 and so on.
The hole in the handle is made so that you can screw the nut to any position on the rod, most tools either can fall off the nut while turning it (like a wrench) or can only screw the nut to a certain distance on the rod, like a torque