Speed squares are a helpful saw guide for cutting 45- and 90-degree angles. The plastic squares are thicker than most metal ones, making them a good fence for the shoe of a circular saw to ride along.

I have been wanting to create my own top 10 uses of a rafter square video, also known as a speed square, but did you know Swanson owns the rights to calling it a speed square? You might be curious ...

PITTSBURGH, Aug. 7, 2025 /PRNewswire/ -- "I work in construction, and I thought there could be a speed square with multiple integrated levels," said an inventor, from West Palm Beach, Fla., "so I ...