Sounds like your tools are 5G ready and your 3G status doesn't know what to do with the extra capacity, so it is blasting it out like static.
i don't science real good and am working for a large employer, so no easy answer on offer. But if we were getting static from an electric powered tool/device (eg coffee grinder, milk shake maker, vacuum cleaner, drill, and so on) it would get put off duty until it could be tested, repaired/replaced as required, and tagged. I got to report an icecream freezer recently which was apparently very inconvenient to others in my team. I suggest less inconvenient than being electrocuted from a faulty chord.