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Found this mini vise-like tool in the deep recesses of my toolbox. I’m sure my son picked it up from somewhere (he’s always buying strange tools) but he can’t remember what it’s used it for. It is about 2.5” x 3” and has “79168 K8” imprinted on it, but I couldn’t find anything via google.enter image description here

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    Looks like a bicycle chain pin remover/inserter. – Steve Fallows Dec 16 '20 at 20:21
  • Scott, please take the tour to learn what you should do next. Thanks. – isherwood Dec 16 '20 at 22:21
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    the chain rivet (where it swivels) is placed under the tools pin (below the threaded handle). The chain is secured in tool by the stub-outs on either side of the pin so when pin is extended to push rivet out the chain link is supported and doesn't bend. – ojait Dec 16 '20 at 23:41
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It's a Wrench Force Mini Chain Tool. You rivet and break bike chains with it.

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  • I'm going to guess the PIN is missing from it, as the pushing shaft looks WAY bigger than any bicycle chain pin... There is likely a threaded hole in the end of the shaft? – mark f Dec 16 '20 at 21:24

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