This little square is accurate and easy to read, that's all. But I also chose this model because I wanted it to be stainless steel, which can't be. I know some types of stainless steel are easily attracted to magnets, but this square has a very strong pull. I discovered this by accident when I took the magnetic head out of my drill and it immediately stuck to the square. I tried using a real magnet and it took a lot of effort to separate the magnet from the square. So this square will eventually rust. Not exactly what I was looking for or what I was promised.
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