Keeping this relevant to the wRec, the following video shows us how to replace
the power cord on a circular saw.
If you start at 4:30, you will see a technique for creating a "ring connector"
from the bare power cord wires. What do think of this technique?
https://www.youtube.com/watch?v=61e5xG4kqXE
I have some issues with some of the other things he says and does in the video,
but this question is mainly about the connection method he uses.