Bought this as it looked like a more useful speed square when I was trying to arrange things neatly but unfortunately got it wrong. Very poor design, all easy to write notches offset about 1/16 inch. Inside-out measurements are not the same as a simple fracture. The orange section is 1 9/16 inches instead of 1 1/2 inches, so try aligning something at the top. The bottom is 1/16 inch different and can be confusing. The stainless steel section scratches and stains very easily.
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