Professional Triangular Engineer Scale Ruler Aluminum Accurate Measurement For A

Feature: \n 1. Aluminum Construction: Crafted from aluminum, our engineer scale minimizes bending and warping, ensuring longevity and reliability in every project.\n2. Flat Placement for Accuracy: The ruler lays flat on drawing surfaces for accurate placement, allowing you to achieve accurate measurements and detailed work without compromising stability.\n3. Concave Design for Clean Lines: Our innovative concave design helps reduce smudging, resulting in clean pencil lines that enhance the clarity and professionalism of your drawings.\n4. Exact Scaling for Professional Use: Featuring accurate scales of 1:100, 1:200, 1:250, 1:300, 1:400, and 1:500, this tool is suitable for professional applications in architecture, engineering, and technical illustrations.\n5. Fade Resist Metal Markings: With permanent prints that ensure accuracy, our metal scales never fade, guaranteeing that your measurements remain clear and legible for years to come. \n\nSpecification: \nItem Type: Triangular En: