Standardgraph Scale Ruler 9411 Triangular Architect is an off white dimensionally stable plastic with 2 coloured flutings. The precision divisions are numerated both ways with dimension markings in cm and m for easier working. The triangular design of the scale ruler gives a perfect grip that is vital for accuracy when working on technical drawings.
Scales: 1:20 1:25 1:50 1:75 1:100 1:125
(Replaces Rotring 802-020)