From the Manufacturer
Find the exact center of any workpiece up to 12″ wide. In addition to top and bottom micro-fine marking holes at every 1/32″ it also has a built-in protractor with guide slots at every 45°, 30°, 22.5°, and 5° interval.
Find the exact center of any workpiece up to 12″ wide. Has a built-in protractor, too. Laser cut slots are incredibly precise, and allow you to make your mark with a mechanical pencil in the slot.