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DFM Tip: 4 Facts to Know About Perpendicularity

Have you ever wondered what the difference is between the terms perpendicular and perpendicularity?  “Perpendicular” is an elementary geometry term that conveys two lines, objects, or planes intersecting at a 90-degree angle. “Perpendicularity” is a geometric dimensioning and tolerancing (GD&T) term that has a very specific, and slightly different, meaning. GD&T terms are frequently used […]