It comes from the UK. It is slightly smaller than the 55 blade. 4 teeth with diamonds on the plate.He is cutting panels, I would want to use one for that if I could.
I believe there is a blade out there for this purpose.
Looks as if Festool dropped the other saw, TS 55R with diamond blade;makita and festool plunge saws are sealed. you can use them once in a while but don't make a habit out of it.