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Title: Completely useless
Review: This tool relies upon a magnet attached to an axle that should, in theory, point towards a nail in a stud. The problem is that it jiggles back and forth as I move it along the wall, making it extremely difficult to tell if it's actually reacting to a stud or just shaking as usual - the magnet is far too weak to solidly catch a piece of metal from any distance.Maybe in perfect conditions where I moved it extremely slowly across a completely smooth wall it could work. Even then I would have to painstakingly slide it across the wall dozens of times because it's no more than an inch at its longest point. Imagine trying to locate a nail inside your wall by lining it up with a quarter.I tried it a few times and ended up burying it indefinitely in storage. Don't throw away your money on this, invest a couple bucks more for an electronic stud finder.
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