Now here's a story that will make U all reel back in horror. Pin your ears back Mc Gyver fans.
I have an old workshop electric drill, it must be about 40 years old + a while ago i needed brushes for this old thing and went to my local Bosh agent, nothing. The agent directed me to an electrical repair shop. No problem said the old guy there.
Now his shop is one of those one room places that is mostly W/shop with a counter next to the door so i could see everything he did. He took my old brushes and pulled the wire out of the carbon, he then made two carbon brushes from a much larger brush, drilled a 1mm hole in the ends of them, then holding the brush wire with a pliers against the spring pressure super glued the wire into the newly made brush. That'll be 20 Rands (thats about 25 cents US) he said. will that work said i, yes he said give it a tug and it was really tight. the upshot is the Drill is still working.
Yes plain common superglue. I've done it myself on an old Columbus floor polisher and yes it works.
As yet i have'nt tried it on the XS brushes as you need that reliability but as an Absolute get U home dodge it would probably work. will try it one day.
Out of Africa, as they say.