Alumicolor 6" Drafting Fan Architect, Engineer and Metric (3699)

A Convenient all-in-one aluminum tool with all of the standard Architect, Engineer and Metric scales used in the industry. (8) scales are riveted together for compact convenience and ease of use. Scales are silver with black anodized calibrations.

Architects: 1/32, 1/16, 3/32, 1/8, 3/16, 1/4, 3/8, 1/2, 3/4, 1, 1/ 1/2, 3 inches to the foot

Engineers: 10, 20, 30, 40, 50, 60 parts to the inch

Metric: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125