Printable Protractor with Dual Degree Scales - Free Download & Measurement Guide #2009686 (License: Personal Use)

This professional-grade semicircular protractor displays two concentric degree scales: an outer black scale (0° to 180° clockwise) and an inner blue scale (0° to 180° counterclockwise), enabling flexible angle reading from either direction. Red indicator lines highlight critical angles (0°, 30°, 60°, 90°, 120°, 150°, 180°), while fine tick marks provide 1° resolution for precision work. The clean vector design ensures sharp printing at any size.

Used in educational settings (math/science classrooms), engineering drafting, architecture, DIY projects, and technical illustration; ideal for users seeking a reliable, printable tool for measuring or drawing angles without physical instruments.