This 300mm 'Verulam' Triangular Metric A Scale Rule is of professional quality. It has exceptional clarity and legibility with brilliant accuracy and design.
The 'Verulam' Triangular Scale Rule has the following dividings / scales: 1:1, 1:10x1:2, 1:20, 1:5, 1:50x1:100, 1:200, 1:500, 1:1000x1:1250, 1:2500 of which are in imperial and metric measurements.
This scale rule is ideal for professional Architects, Civil Engineers and Mechanical Engineers.