Nozzle Wrench

UPDATE: A new design is out. This old one wars not strong enough. The new one is reinforced with brackets from 1mm wire witch makes it a lot stronger.
See http://www.thingiverse.com/thing:2312770

A simple wheel for a 6mm socked to unscrew the nozzle of an 3d printer.

The socket is locked in place with an m3 screw. The head of the screw also reduces the depth of the socket to prevent the nozzle to drop all the way down.

I provided two versions, one for 16mm screws and one for 20mm scre