This should work for PCBs, it's the same principle as a sheetmetal nibbler, just on a large scale.
Since it cuts out a narrow strip, individual boards would have to be separated by a gap, but it should not tend to run to one side like other shears since everything is symmetrical.
30eur is a bit much just to try it, but I'm sure that type of cutter is available elsewhere and maybe someone wants to try it...
ST
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