Bocianelli Plastic Scale Ruler 30cm 1:10 1:20 1:25 1:50 1:75 1:100 1:125 1:200 1:250 1:500 1:750 1:1250 Black Metric for Architects Engineers Architecture Technical Drawing

Scale 1:10 1:20 1:25 1:30 1:40 1:50 / 1:100 1:200 1:250 1:300 1:400 1:500 Length: 30cm. Supplied in rigid transparent plastic box for easy storage and protection. Made of black plastic with white letters and red green and black color stripes 2 scales on each side of the ruler (12 different scales in total) - covers most of the scales used on architectural and engineering drawings . High quality ruler for professional applications, architecture, engineering, technical drawing.