Review on 📐 Hanson 03065 Pivot Square Nylon: The Go-To Tool for Precise Measurements and Versatility by Aaron Ali

An exact angle measurement is not possible due to the large gap between the two halves and the flexibility of the plastic. (see photos). The gap can be closed with a little effort and the plastic spring opens again when you let go. This means that if you run a saw or even a pencil along the edge, the angle will actually change. Other reviewers have also mentioned the gap. I didn't even dare to take it out of the packaging. Admittedly, I wasn't expecting to get a $20 plastic precision tool, but the one I got isn't even useable for its intended purpose, unless you're building a doghouse, maybe. . ;-P