I know I know it is not exactly a tool. But every cup brush I buy, ends up at some point spitting wire at me. Maybe the bear or someone can point out a really good cup brush. It is even a safety issue as well. Those little suckers can hurt.
On a side note I watched your Samsung washer repair, and have binge watching the rest of your videos(you rock the tools). Your honesty and integrity to me is your best quality.
Ill be honest the reason I stayed away from the hurc stuff was because HF started the knockoff in batt operated tools with a blue plastic line that sucked a$$. But you have renewed faith in HF blue tools. Thus the side note posted above is so relevant.