Helix 30cm/300mm Metric Scale Ruler K93070
- Scale rulers are used by architects and engineers to calculate dimensions in a blueprint or building plan without the use of time-consuming and complicated math equations.
- The ruler would be ideal for use in the office or at home.
- This Triangular Scale Rule is a stylish rule suitable for architects.
- The Helix 30cm triangular scale rule has colour coded sides with markings of Red 1:100, 1:200, 1:5, 1:50, Blue 1:2, 1:20, 1:10, 1:1, Green 1:1250, 1:2500, 1:5000, 1:1000.
- Triangular plastic rule featuring high-grade print and 3 color-coded faces
- Metric and scale graduations
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