Bocianelli Aluminium 30cm Metric Ruler, Silver, 12 Scales for Architects Engineers

Scale 1:20/200 1:25/2500 1:50/500 1:100/1000 1:125/1250 150/1500 Length: 30cm. Supplied in rigid transparent plastic box for easy storage and protection. Made of silver aluminium with black letters and silver, green and red coloured slots. 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.