Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:3789263.

Manual hand crank for windows/skylights. I have 2 skylights that have the standard hook attachment for opening them with a telescoping pole. However, the skylights are easily reachable without a pole, so a hand crank makes more sense and is much easier to use than manually grabbing the hook and spinning it.

This is designed to fit over a 13 mm hex drive. It prints in two parts, which then are joined by a M3 screw.