I bought this square thinking it was square. Fool, that's not it! Not only is it not square, but the gauge marks do not start at zero at the intersection of the square's perpendicular sides. After all, it doesn't even stand out perpendicular to the wood-brass base. Although it looks great. You did it! I had to buy a Starrett C11H-4GR 0.00001 inch square to tell me the Powertech square wasn't square. I bought it in August 2010 for $20. I see it's worth $10 now. It's still overpriced.
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