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Products / Desk accessories & essentials / Rulers And Protractors
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Rotring Triangular Scale Ruler
- Off white dimensionally stable plastic ruler
- Precision divisions are numbered both ways
- Dimension markings are in metric for easier working
- Two coloured flutings
Tri ruler 1 Architect 1:25
1:10 1:20 1:50 1:75 1:100 1:125 1:200 1:250 1:500 1:750 1:1250
Tri ruler 4 Architect
1:10 1:20 1:25 1:30 1:40 1:50 1:100 1:200 1:250 1:300 1:400 1:500
Tri ruler 6 Surveying
1:25 1:50 1:100 1:125 1:150 1:200 1:250 1:500 1:1000 1:1250 1:1500 1:2000 1:2500
Tri ruler 9 Mechanical
1:10 1:15 1:20 1:25 1:033.3 1:50 1:100 1:150 1:200 1:250 1:500
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