Alvin Engineering plastic scales are made for professionals and students alike. The 12" scale is divided in 10, 20, 30, 40, 50, and 60 decimal parts to the inch. - Alvin Professional Triangular Scale - , 12", White, EngineeringENG -
Alvin Engineering plastic scales are made for professionals and students alike. The 12" scale is divided in 10,20,30,40,50,and 60 decimal parts to the inch.,Drafting Scales,Drafting Supplies,Illustration and Drawing Supplies,Scales,Alvin Professional Engineering Scales,White,12"