6" Drafting Scales Four Bevel Architects and Engineers Scaled Rulers By Alvin

Four Bevel Flat Scales - high quality architects scales and engineers scale by Alvin. Perfect for Architectural & Engineering design by Alvin. 310 Series four-bevel drafting scales made of high impact white plastic in 6 inch length with printed graduations. Supplied in vinyl sheath.

Refer to chart above for the specs of the scales listed below:
Architects Scale 4 Bevel Flat 6" 310A Model Plastic architectural scales include 1/8, 1/4, 1/2, 1, 3/8, 3/4, 1 1/2, and 3" to the foot graduations.
Engineers Scale 4 Bevel Flat 6" 311E Model Plastic Known as an Engineering Rule or Ruler Graduations Include: 10, 30, 40, 50 parts per inch.