Staedtler Triangle Scale Ruler 1:100 - 1:500

The Staedtler Mars 561 Triangle Scale Ruler or reduction scale ruler is made from solid white plastic with 6 scales to every ruler. It comes with two coloured flutings and colour-coded grooves for easy identification of scales. The precise divisions are numerated both ways with dimension markings in both centimetres and metres for easier working. The triangular design of the scale ruler ensures the perfect grip vital for accuracy when working on architect's or any technical drawings.

• Version 4 561 98-4BK
• Scales: 1:100, 1:200, 1:250, 1:300, 1:400, 1:500

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