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Scale ruler Mars 561 Staedtler 1:20 - 1:125

Scale ruler Mars 561 Staedtler 1:20 - 1:125

Reference : 853-04

Detailled description

A specific rule for technical drawing. Ideal for architects, engineers, industrial draftsmen, it is very helpful for scale calculation in technical drawings:


  • Practical, it includes a triangular reduction scale on a length of 30 cm. In total, 6 scales: 1:20 - 25 - 50 - 75 - 100 - 125

  • Featuring grooves with color codes to identify the scale

  • Made of white ABS plastic, this rule is of remarkable durability for carrying out all drawing work in a professional manner!


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