Shinwa Aluminium Triangle Architects Scale 150mm Black B-15

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A convenient, pocket-sized, six scale triangular rule, invaluable for working with scale drawings.

The 1:250 and 1:50 edges are also handy for map reading applications, giving subdivisions of a grid square or 'as the crow flies' measurements down to 20m or 50 m respectively.

  • Measuing length: 150mm
  • Overall Length: 170mm
  • Cross section: 16×16×16mm
  • Highly durable aluminum construction
  • Scales often used in architectural blueprints
  • Reduction Scale 1/20, 1/50, 1/100, 1/200, 1/250, 1/300
  • Laser etched.