I use this constantly during demo. It is a very powerful magnet for locating drywall screws - even under thick mud. Once located, I pull as many screws as I can find and remove drywall in one giant sheet instead of round, dusty messy piles of rubble.Update: I lost it. It's so powerful that it will stick to a nail-head and jump out of your tool belt. I've found it stuck to a nail in the attic, stuck to a radiator that was in a trash pile and stuck to a tool that was put away. When I lose it, all work stops while I search. I bought two more as a back up.
Rating:
[5 of 5 Stars!]