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Electrical wiring and junction boxes that are designed for usage in an existing home.

6 votes

How can I remove foamboard insulation from behind drywall so electrical box tabs have cleara...

I'd try a rotary (drum) rasp of a suitable diameter in a drill. The radius should be slightly larger than that of the swinging part on the box. You should be able to work it in behind the drywall with …
isherwood's user avatar
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