Black Wrench in dreams
A tool for turning a heavy fitting — leverage applied where fingers cannot manage on their own.
How black changes the reading
Black colour pulls the symbol toward the not-yet-known — depth, hiddenness, the part of the situation that has not yet come into the light. The dream is rarely warning you; it is showing you that there is more to the picture than the part you have been looking at.
The base reading of Wrench
A wrench in a dream is the dream's image of leverage — the use of an extension to move something that the unaided body cannot. The dream brings the wrench when a problem in your life requires the deliberate application of more force than you would prefer to use, channelled through the right tool. A wrench fitted to the right bolt and turning is the dream telling you the leverage is correct. A wrench stripping the bolt is the dream marking that too much force was applied to a joint that needed care, and now the fitting is damaged and harder to move.