This t-square has been working out great. I use this for craft/art/lettering projects.  For those purposes, ruler seems really sturdy.  Purchased it after struggling to achieve straight lines with my other rulers.  I do want to warn folks about some quality issues I ran into. The first one I received had some deep cuts on the underside of the blue head - it almost looked like someone had taken an exacto knife to it and carved a few lines. The raised/scraped out bits of plastic were still attached to the ruler and scratched my hand (and undoubtedly would absolutely scuffed the art paper I was going to use it on).  So I exchanged it for another one...and the second one had a scratch/dent in the blue head as well!  I didn't have enough time to work with to do a third exchange, and since the damage was minimal, I decided to make do.  I tried to remedy the situation by shaving down the raised plastic dented part with a coarser grit emory board just so that I wouldn't nick myself or my art paper.
This t-square has been working out great. I use this for craft/art/lettering projects. For those purposes, ruler seems really sturdy. Purchased it after struggling to achieve straight lines with my other rulers. I do want to warn folks about some quality issues I ran into. The first one I received had some deep cuts on the underside of the blue head - it almost looked like someone had taken an exacto knife to it and carved a few lines. The raised/scraped out bits of plastic were still attached to the ruler and scratched my hand (and undoubtedly would absolutely scuffed the art paper I was going to use it on). So I exchanged it for another one... and the second one had a scratch/dent in the blue head as well! I didn't have enough time to work with to do a third exchange, and since the damage was minimal, I decided to make do. I tried to remedy the situation by shaving down the raised plastic dented part with a coarser grit emory board just so that I wouldn't nick myself or my art paper.