The entire row of actinides is "grabbing and squeezing" tools, except at the end where I have "unsqueezing" tools (spreaders and jacks, which are spreaders to s

The entire row of actinides is "grabbing and squeezing" tools, except at the end where I have "unsqueezing" tools (spreaders and jacks, which are spreaders to separate things from the earth). Similarly the lanthanides are measuring tools.