Isomars triangular scale(T4) is a stylish rule suitable for architects.
Isomars 30 cm triangular scale is made of white plastic with precision divisions and has color coded sides of red and yellow-1:10,1:20,1:25,1:30,1:40,1:50,1:100,1:200,1:250,1:300,1:400,1:500 .
Dimensions are in (cm) and (m) for easier working.
Scale rulers are used by architects and engineers to calculate dimension in a blue print or building plan without the use of time-consuming and complicated math equations.
This durable T-square scale with detachable head for students and professionals has been designed with precision to yield the most accurate measurements and drawings.