A speed square is handy for marking cuts, finding angles, and more. Here are a few good reasons why no toolbox should be ...

These 12 essential marking tools help woodworkers measure precisely, cut cleanly, and bring symmetry and accuracy to every ...

Perpendicular to the ruler blade is a flat shelf that forms a 90-degree angle with the bottom of the ruler on one side, allowing you to make a square with the ruler and the head, and (usually ...

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The crows found it easier to detect an outlier among four-sided shapes with regular features, like the even length of sides in a square, or the consistent 90-degree angles of a rectangle. The more ...