This 6" protractor has four angle scales and feature micro guide slots every half degree to plot any angle with ease and absolute accuracy. If you take a few seconds to remove the T-bar you will also have an excellent 6" rule with micro-fine marking holes at every 1/32".
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Incra rulers feature micro-fine guide holes and slots at standard scale positions. Using a scribe or a 0.5mm mechanical pencil, these holes and slots allow you to place your mark with absolute precision. The incra rulers are made from ultra thin stainless steel with engraved lines and characters on a matt finish for easy legibility. We like them a lot. Made in USA.