Alumicolor triangular Drafting Scales are made of extruded aluminum. The Alumicolor photo anodizing process makes the calibrations a part of the aluminum, providing a smooth, ...
Hollow triangular architect scale in silver. Lightweight and portable. Markings are resistant to cleaners and solvents. Calibrations: 16, (1/8, ¼), (½, 1), (3/8, 3/4...