Question about Einhell power

The original wire has a diameter of 2 mm (I've just checked in the manual) and rather than changing the spool at the end, you can easily reload the wire. Any brand will do.

The original thread has a diameter of 2mm. I work with two bobbins on which I wind freely available thread, also 2mm.

The original wire is quite thin (3mm I think) and spare cassettes are easy to find at einhell.
It breaks quite easily, and there is only one cutting strand on the head.
A thicker wire (5mm) is possible, but I don't think the motor likes that very much (more drag)...