1.5mm^2 on the 230V, 2.0^2 on the 110 unit. Though I think the cords mean mm not mm2
It's not the gauge, it's the covering. Plug it cords, the 230V CT, my Mafell tools, all have soft insulation, no markings but it looks/feels to be some sort of natural rubber. The 110V CT cords is some sort of Vinyl. It's not a gauge issue, I have plenty of heavier gauge cords, they can be nice and soft too. The cord is normal 105C, 300V like the other Festool cords. I can't get much from the EU sold tools, they must not have the same regs for marking specs on the cords as the USA.
My TS55 is my most powerful Festool Tool, so I don't know what the cord on say a OF2200 looks like.