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Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? The Speed Square was designed in 1925 as an aid to carpenters framing homes, and ...

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 ...