I've bought the smaller version of the cutter.
In the cattalogue it is advertised as "Wanten- & Drahtseilschere" up to 6mm. In turn, on the packing, there is information that it is suitable for wires up to 6 mm, but only for "mild steel strand". For other kinds of wires, the maximum cutting thickness is only 4 mm or even 2 mm. Unfortunately such information is not available at the SVB shopping web page. I am afraid "Wanten" are usually not made of "mild steel strand" wire.
I think the information in the cattalogue is misleading. After receiving the cutter, I have sent a question to SVB, but it was never answered.
Anmerk. SVB:
Die kleine Drahtschere C7 schneidet "problemlos" 6mm Nirodrähte 1x19 / 7x19. Wir haben diese Drahtscheren bei uns in der Werkstatt im täglichen Einsatz.