【Enameled Grooves】：3 color coded grooves make it easy to find the scale you needed. Out of ordinary, our color coded sides are enameled paint in lieu of cheap stickers. No peelings and Lasts Longer.

【Laser Etched Scales】：Numbers are etched not painted on the rulers. Never start to rub off or fade. Gives you great accuracy.

【Easy to Read】：White etching on blue rulers makes scale easier to read. Bright blue in color which makes the white numbering jump off.

【Durable To Use】： Made of high impact aluminum. Solid metal construction. Heavy duty also lightweight. Nice clean edges without ridges to make perfect lines. Perfect for the drafting and measuring of architectural drawings.

【11 Imperial Scales】: 1 1/2", 1, 3/4", 3/8", 3/16", 3/32", 1/2", 1/4", 1/8", 3 ,16