12" triangular architect scale designed to facilitate the drafting and measuring of architectural drawings, such as floor plans, blue Prints, and orthographic projectionsTriangular ruler features 3 sides with 6 different scales, and made from high Impact aluminum, build to lastLaser etched scales never fading. Architect ruler with enduring laser cut imperial prints for accuracy. They will not wipe or scratch off everProfessional grade for supreme accuracy color coded triangular scale for easy and quick selection of the desired scaleStandard imperial measurements: 1-1/2, 1, 3/4, 3/8, 3/16, 3/32, 1/2, 1/4, 1/8, 3, 16
