Chartpak Adjustable Triangular Scale Aluminum Architects Ruler, 12″ Long, Silver – Adjustable Triangular Scale features a unique dial. Rotating the dial allows quick adjustment from one graduation to another without moving the scale from the worksurface. Graduations include 1/16, 1/8, 1/4, 1/2, 1:1, 2:1, and 32. Scale is made with the high-quality, satin-finish aluminum.
- Versatile design for architects.
- Change units quickly and easily by rotating dial at either end of scale.
- 12″ measuring length, exact calibrations.
- Manufactured of the highest quality aluminum.
- Adjusts to 1/16, 1/8, 1/4, 1/2, 1:1, 2:1 and 32.















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