We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › Also known as a rafter square or triangle square, the speed square, invented by Albert ...

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 ...

If you’re not sure what a speed square is, or how you can put yours to good use, this video lesson shows you everything you need to know about one of the best tools out there. In this video from the ...

October 22, 2014 Add as a preferred source on Google Add as a preferred source on Google Most speed squares have a notch at the 90 degree corner which is used to determine angles. To draw a circle ...

The speed square isn’t just for marking lines — it’s a multitool you didn’t know you needed. Here are 11 clever uses that go way beyond the basics. Once you see them, you’ll never look at your square ...