Newer ones are not as of 2008/2009. Is there a little Hex key slot in the bolt that adjusts them? Is the release lever held in by a little rolled metal pin you can see through or by a solid rivet?
Every American made (literally and with global components) VG has the roll pin that holds the lever inside the handle.
Now, after establishing that, it is important to note that US made vise grips were also made with the hex key (nearing the very end of the US made run) in the bolt as well. Not many at all compared to the Chicom/Taiwanese made ones, but there exists those as well. The easiest way is to look for the roll pin and the nickel plating that isn't so... flat/matte. Think more shiny and polished.


