Hi Yetkin. I am working out of town so I just checked in. When I soldered the Cardas wire I used a low watt pointy tip soldering iron. I am pretty sure / from memory, 25 watt. I used the iron to strip the wire jacket, then I blue tacked the clips on a support/a little box so it would not move. I then pre-soldered the clips, and blue tacked the wires so they are on the clips. Once you do this, it is pretty easy to solder these fine wires to the clips, lickety split. Now, this is done at the arm so make sure the platter does not move cause this is done on the plinth. Just do not forget to have the shrink tube on the wire before this operation.
Cheers, Doug