INCRA Precision Centering Ruler 12 in. is a highly accurate tool designed to make marking measurements effortless and precise. Unlike traditional rulers, this tool automatically marks the center of your work with pinpoint accuracy. Simply align the ruler, place a 0.5mm pencil in the precision slots, and your mark will be ly positioned every time. The ruler features marking holes spaced every 1/32 inch and is graduated from the center outward for 6 inches in both directions, allowing for quick and easy centering. Additionally, it includes a protractor with built-in guide slots at every 5-degree interval, highlighting the most commonly used angles of 45, 30, and 22.5 degrees. Crafted from durable stainless steel and made in the USA, this centering ruler combines precision and quality for all your measuring needs. Model Number: