I just wanted a fairly large square (proportional table saw blade size) to check blade alignment on a bunch of saws first. Sorry I forgot the size but it was one size bigger. And that's okay, a smaller one would have worked, but it was small. But the unexpected benefit is that the base (the leg of the L) is really heavy and will stand up just fine on its own. Only the angle is checked. It has no measuring scales or anything like that. Just simple and well done.
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