Bought a year ago, used a few times. All along I was wondering why some of my corners were a bit off. When I had to use this in combination with my bench level I figured the Irwin level wouldn't work because it's more useful. It turned out to be a Johnson angle finder which was about 2 degrees off which I confirmed with a test square. Worse still, it's unregulated. I should have checked when I received the item last year. This is made in the USA for you.
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