Triangular Drafting Scales Alumicolor

Made from the highest quality aluminum for ultra smooth edges and a solid feel without flexibility. The anodized silver finish gives a satin-like feel, while the photo anodized calibrations are resistant to cleaners and will not rub off. Imperial Architect Scale calibrations are inches to 16ths, (1/8", 1/4"), (1/2", 1"), (3/4", 3/8"), (3", 1-1/2") and (3/32", 3/16"). Imperial Engineer Scale calibrations are 10, 20, 30, 40, 50 and 60 parts per inch. Metric Architect Scale calibrations are 1:100, 1:200, 1:250, 1:300, 1:400, 1:500. Metric Engineer Scale calibrations are 1:1, 1:2, 1:5, 1:10, 1:20, 1:50. The hollow scales feature the same calibrations as the solid scales but are light-weight. The color-coded scales are solid and have a different color stripe on each side, making it easy to find the scale you want.