Alumicolor Hollow Triangular Drafting Scale - 12" Silver

Alumicolor triangular Drafting Scales are made of extruded aluminum. The Alumicolor® photo anodizing process makes the calibrations a part of the aluminum, providing a smooth, tick-free finish and markings that are resistant to cleaners and solvents. 12 inch Triangular Architect's ruler with 3 sides with 6 different scales. Ultra smooth calibration marks never rub off or fade. High quality extruded aluminum is perfectly straight for precise measurements. Hollow Scales are lightweight for easy portability and a more affordable price.