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Have you ever experienced a spark caused by a short circuit when replacing a car battery?
If it's made of plastic, it doesn't conduct electricity, so it doesn't spark, but I can't find a plastic tool even if I look for it.
I think it's probably because even reinforced plastic will break soon, and there's also a safety issue.
So, at my own risk, I made my own tool using a polycarbonate board, and it works fine.