12" Architectural Scale Ruler Aluminum Architect Scale Triangular Scale Ruler for Architects, Draftsman, Students and Engineers, Black

Constructed of Solid High-Grade Aluminum to reduce flex and warping. This allows the ruler to lay flat on the drawing surface for precise and accurate placement. The concave design feature helps reduce smearing for clean pencil lines. It is widely applicable to professionals such as architects, engineers and draftsmen, and can meet their strict requirements for high precision when drawing professional drawings and designing projects. For students majoring in architecture and engineering-related fields, it is also an indispensable learning tool, facilitating academic progress. Meanwhile, model-making enthusiasts, technical artists and other groups can also use this ruler to achieve precise drawing of creative works. Specification: Color: Black Scale:1-1/2", 1, 3/4", 3/8", 3/16", 3/32", 1/2", 1/4", 1/8", 3, 16 Package Included: 1 Pack