Architect's Rule, Aluminum, 12-In.

Drafting and measuring for architectural drawings is a snap with Johnson's architect's triangular scale. This aluminum extruded triangular ruler has an anodized finish with laser etched gradations and measurements, making it durable and easy to read. This 12" scale features all the measurements you'll need - it is divided in 3, 1-1/2, 1, 3/4, 3/16, 3/32, 1/2, 1/4, 1/8, inch per foot and one division in 1/16 inch.