Drafting Fan Alumicolor™ Drafting Fan is another convenient all-in-one tool made from aluminum that has all standard Architect, Engineer and Metric scales used in the industry. 8 blades of aluminum sheet, riveted together giving you a compact tool with everything you need!

Calibrations:

• Architect: 1/32, 1/16, 3/32, 1/8, 3/16, 1/4, 3/8, 1/2, 3/4, 1, 1-1/2 and 3
• Engineer: 10, 20, 30, 40, 50 and 60
• Metric: 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125