Never seen one of those before Dave. I think you are probably right about cutting plastic with it. The rotational speed seems a little high. I also think the blade looks a little exposed so might not be the safest in use…..what voltage is it? If it’s twelve volt a railway transformer would allow you to slow it down for plastic?
I do have one of these, but don’t think it’s been used for about twenty years…..
I used to use it for cutting MDF for gaming figures in the days before laser cut MDF, and for various railway modelling tasks. I buy my bases pre cut now though, they are cheap and it gets rid of a really boring task. Makes a hell of a lot of dust in use as well. It’s twelve volt so I do turn it down for plastic. Has a wood and a metal blade as well.
Personally, I think the most controllable is one of these…..
https://www.scalemodelshop.co.uk/mi...MIyKH-jpmo-wIVg_ftCh2JSw3eEAQYAiABEgLcmfD_BwE
Easy to use, cheap, and you can replace the cutting saw for a finer or coarser one depending upon the task. Slightly slower in use, and a bit more fiddly for repetitive cuts, but probably more useful than either of the above.