Chartpak Triangular Scale, Plastic, 12-Inch, Engineering, Color-Coded (Cha235E)

The color coded center groove easily identifies scale graduations. Measurements are precision-etched into a durable laminated plastic for accuracy. Comes in a protective case. Color coded, 10; 20; 30; 40; 50; 60 parts per inch. Ruler Type: Triangular...