Not sure on either, but if I had to guess the top one looks like it might be for clamping onto something like leather or maybe sheets of some sort of rubber like for a conveyor belt or something.I tried looking under the patent number(415.929/68) on google but I could not find anything on them
Each jaw has 18 teeth on it in a 9x2 config.
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I suspect this is a hollow wall anchor tool but I could not find an image for it
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