Alumicolor 12" Scale Architect Ruler (77244)

Alumicolor's solid drafting scales are the ultimate for accurate, professional use. Satin-smooth anodized aluminum scales are a pleasure to use. Alumicolor's hollow scales are light-weight but truly professional with the full six scales on each one and ultra smooth, mark resistant surface. The Architect scales have the following calibrations: (3/32, 3/16) (16) (1/8, 1/4) (1/2, 1) (3/4, 3/8) (3, 1 1/2).All scales measure 12 in. in length.