Don't listen to the negative reviews, the people who wrote them don't understand the frame of the square. They come out of the square when thrown. They are used for rough framing. You don't build a piano. With a punch, they easily return to their original position. For the money this square is exactly what I wanted. light and easy to read. If you want a square that's more accurate than you are, use a Starrett. I'm a carpenter and that will serve me well.
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