OCM Brand Metric Triangular Engineer Scale Ruler Proffessional Grade Solid Aluminum 30 Centimeters Metric Engineering Architectural Mechanical Drafting Ruler 120 125 150 175 1100 1125

SOLID ALUMINUM 30cm METRIC - Engineer, Mechanical, Architectural, Draftsman scale ruler with triangular body for safer cutting and scoring of materials., PRECISE SCALES - 1:20, 1:25, 1:50, 1:75, 1:100, 1:125. For professional applications, architecture, engineering, and technical Illustration, PRECISION MARKED METRIC GRADATIONS (NOT IMPERIAL) - Easy-to-read printed gradations., 3 SIDES with 6 METRIC SCALES - Concave base reduces smearing when drawing.