OwnMy 3 Pack 12 Inch Solid Aluminum Triangular Architect Scale Ruler Set 3-Colors-Groove Architectural and Engineer Scale Metal Ruler Set Laser Etched Scales Drafting Rulers for Engineer Blueprint

It is a specialized ruler. It is used in making or measuring from reduced scale drawings, such as blueprints and floor plans. It is marked with a range of calibrated scales (ratios). Tips: Always make sure your pencil tip is extra sharp and use a drafting or fine-point pen; a wide mark could throw off your measurements, and even the smallest of increments on the paper can translate into a major difference in the structure. Features: ? The architect triangular scale is made from professional grade solid aluminum, heavier than other hollow / plastic architect rulers. ? All measurements are Precision Laser-Etched and will never rub off or smudge. ? The scale ruler designed to facilitate the drafting and measuring of architectural drawings, such as floor plans, blue prints and orthographic projections ? A perfect measuring tool for any architect, draftsman, engineer, or student Specification: Material: Professional Grade Solid Aluminum Color: Multicolor Groove Ruler scale: Precision Laser-Etched Scale Type: Imperial Scale Architect's Triple-Sided Scale – 11 different scales: 1-1/2", 1, 3/4", 3/8", 3/16", 3/32", 1/2", 1/4", 1/8", 3, 16 Engineer's Triple-Sided Scale – 6 different scales: 1:10, 1:20, 1:30, 1:40, 1:50, and 1:60 Standard Metal Ruler: 30CM / 12” Full scale for your choice Package Included: 1 x Architectural Scale Ruler 1 x Engineering Scale ruler 1 x Standard Metal Ruler