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.
