Triangular architectural scale ruler 1:20, 1:25, 1:50, 1:75, 1:100, 1:125, 30 cm, for architects, students, draftsmen and engineers, silver - aluminum

High quality: High-quality solid aluminum triangular scale ruler to minimize bending and deformation. Three sides with six different scales. Six metric scales: 1:20, 1:25, 1:50, 1:75, 1:100, 1:125, very easy to read. Accuracy: Professional quality for maximum precision. A perfect measuring tool for any architect, draftsman, engineer, teacher, or student. Length: 30 cm. Weight: 80 g.