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

STAEDTLER 12in Engineer Scale Ruler - Triangular Engineering Ruler With 6 Scales(10-60 Parts/Inch), Color-Coded Grooves, Plastic

12-Inch Architectural And Engineering Scale Ruler Set (Imperial) | Laser-Etched Aluminum Triangular Drafting Tool | For Architect And Civil Engineer

Triangular Engineering Scale Aluminum Ruler For Architects, Engineers And Students (12 Inches)

STAEDTLER Engineer Aluminum Triangular Scale, 12in Metal Ruler With Color-Coded Grooves, Weather-Resistant, 6 Scales (10-60 Parts Per Inch)

NOKKO 12 Inch Architectural And Engineering Scale Ruler Set - Professional Architect And Engineer Scale Rulers For Drafting, Architects, Engineers,

Architectural Scale Ruler, 12'' Imperial Architect Scale, Aluminum Engineer Scale Ruler For Blueprints, Metal Scale Rulers, Architecture Ruler,

Engineer Scale Ruler 2 Pack 12-Inch Triangular Ruler Metal Scale Ruler For Blueprints Drafting Ruler For Civil Engineer, Draftsman

Pacific Arc Engineer Triangle Scale Ruler 12 Inch With Etched Markings In Fully Divided 10, 20, 30, 40, 50, And 60 Parts To The Inch

Staedtler, Std987m1834bk, Prof-Quality Engineer's Triangular Scale, 1 Each, Silver

Staedtler Professional Engineer's 12" Triangular Scale

Staedtler Mars Student 12"L Engineer Triangular Scale (987 19-34BK)

Staedtler Engineer's Etched Scale

Rena Chris 2PCS Architectural Scale Ruler: 12" Imperial Aluminum Triangular Scale Ruler, Laser-Etched Architecture Ruler, Drafting & Architect Ruler

Rena Chris Architectural Scale Ruler: 12" Imperial Aluminum Alloy Metal Architecture Measuring Tools, Engineering Drafting Construction Drawing

Staedtler 12" Triangular Engineer Scale

Staedtler Mars Professional Engineering Triangular Scale

Pacific Arc Architectural Scale Ruler, 6" Scale Ruler For Architectural Designs, Engineering, Or Drafting

Staedtler 12" Triangular Engineering Scale - Color Coded Grooves

PEC Tools 6 Inch Metal Ruler, 1/50" Thick X 1/2" Wide, High Contrast Machinist's Ruler With 1/32", 1/64", 1/50", 1/100" Graduations, Stainless Steel,

Pacific Arc 12" Scholastic Engineer Scale

Architectural Triangular Scale Ruler - 12" Aluminum - Laser-Etched Imperial Drafting Tool For Architects, Engineers & Students

Staedtler - Mars Student 12"L Engineer Triangular Scale - White

Rena Chris 2PCS Architectural Scale Ruler: 12" Imperial Aluminum Alloy Metal Architecture Measuring Tools, Engineering Drafting Construction Drawing

Macarrie 10 Pcs Architectural Scale Triangular Ruler 12" Architect Engineers Scale Ruler Set Aluminum Metal Ruler With Imperial Measurements For

Staedtler Student Grade Engineering Scale, 12in