Imperial Academy Architects Triangular Scale Rule 12 Inch (300mm)

• Triangular Academy scale rule
• Accurate and clear 
• Quality, cost effective material  
• Colour co-ordinated scales in ten dividings
• Ideal for educational purposes

12" (300mm) Dividings:

3/32”, 3/16” = 1 ft x inches (16ths)
1/8”, ¼” x ½”, 1” = 1ft
3/8”, ¾” x 1½, 3” = 1ft