Custom Printed 8 inch 45/90 Calibrated Drafting Aluminum Triangle Ultra-smooth finish won’t mark your work surface. Our triangle sets combine the most popular sizes of our triangles in convenient packs that are ideal for students and beginning draftsman. Photo anodized calibrations are a part of the finish and resist fading or rubbing off. 6 Inch Drafting Tool Alumicolor Aluminum 10 Inch Calibrated Drafting Triangle, 30/60/90 Degree Alumicolor Aluminum Triangle 6 Inch ALUMICOLOR IS QUALITY – Made with the highest quality extruded aluminum all our measuring tools and triangles have smooth edges and are calibrated to exact specifications 45° / 90° DESIGN – Drafting triangle features holes up to 1 in diameter Alumicolor Calibrated Triangles are made of tempered aluminum which ensures their durability compared to plastic alternatives. Fairgate 6 45/90 Aluminum Triangle INCH AND CENTIMETER CALIBRATIONS – Aluminum metal drafting triangles are calibrated in both inches and centimeters for flexibility in professional drafting