- Durable Metal Construction with Professional Finish: Crafted from high-quality anodized aluminum, this triangular ruler is designed to withstand wear and bending, making it a reliable tool for long-term use in demanding work environments. - Etched Metric Markings for Precision: Features clear, light-resistant, and etched scales on all three sides, ensuring highly accurate measurements for engineers, architects, draftsmen, and construction workers in both design and fieldwork. - Multi-Scale Design for Versatile Applications: Includes multiple metric scales that facilitate quick conversions and enable diverse uses in carpentry, construction planning, model building, and architectural drafting. - Compact and Portable for Field or Studio Use: Lightweight and easy to carry, this engineering scale ruler fits neatly into toolboxes or backpacks, making it an essential accessory for professionals and students alike. Use Cases: 1. Ideal for architects needing precise measurements for blueprints and designs on-site. 2. Perfect for carpenters executing intricate cuts and layouts in the workshop or at job sites. 3. Great for students in engineering and design courses requiring practical tools for class projects.