If you’ve ever taken a leader fall on a nut while rock climbing, you know that little sucker can be a BEAST to get out of a crack, even with a nut tool.
Been there a thousand times. Lost plenty of perfectly good pieces because of this.
The little hammer aims to solve the issue. It has a spring loaded weight in the handle of the tool that dislodges stuck hardware simply by loading the spring, setting the tool against the hardware, and releasing the handle
I saw this an immediately thought "hell yes I want one one of these!". If you've ever done any aiding or long trad, you should check this out.