Icon for "factory reset"

I'm having a hard time finding an appropriate icon for "factory reset". At the moment, I have a "warning" icon, but I am looking for something less aggressive and more to the point.

Answer

The following icons have the following 'subtle/subconscious cues'.

• The backwards circular arrow is as if reversing the direction of a clock - ie taking a step backwards.


• The warning exclamation icon indicates something serious or of special note


• Red indicates the warning


• The point (if used) indicates a 'point' in time (ie reverting to a point in time)


• The vertical stroke within a circle is reminiscent of a power cycle button



• The black point is reminiscent of the hidden reset button that you have to poke a paper clip at to press it


• the black point with the circle indicates that you end up exactly where you started

I would also like to advocate that such a serious action also has clearly marked labelling.