Engineer Scale Ruler 12 Inch, Aluminum Laser-Etched Triangular Drafting Tool for Civil Engineering Drafting, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60 (Blue)

Kyuionty Engineer Scale Ruler 12 Inch, Aluminum Laser-Etched Triangular Drafting Tool for Civil Engineering Drafting, Imperial Scale 1:10, 1:20, 1:30, 1:40, 1:50, 1:60 (Blue)

Rena Chris Architectural Scale Ruler, 12" Aluminum Architect Scale, Triangular Scale, Scale Ruler for Blueprint, Triangle Ruler, Drafting Ruler, Architect Ruler, Metal Scale Ruler, Architecture Ruler

Intoy 12 Inch Triangular Engineer Scale Ruler, Anodized Solid Aluminum Core with Laser Etched Scales, Imperial Scale - 1:10, 1:20, 1:30, 1:40, 1:50, 1:60, Ideal for Civil Engineering Drafting