Pacific Arc Protractor - 4 inch

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Professional Protractors made from pure clear acrylic to ensure long life and value. Graduations are etched onto the surface to prevent wearing off.A protractor is a measuring inst rument for measuring angles. Most protractors measure angles in degrees (°). Most protractors are divided into 180 equal parts.They are used for a variety of mechanical and engineering-related applications, but perhaps the most common use is in geometry lessons in schools.v Show more