Incra PROTRAC06 6-Inch Precision Marking Protractor

Incra's big stainless steel Protractor doesn't just measure angles, it marks them - automatically - perfectly. Line up the center, place a .5mm pencil in the precision slots and your mark is dead on. Protractor has extra long guide slots at every 0.5, 1, 5, 22.5, 30, and 45 degree interval. Convenient built-in 6" rule along the lower edge has marking holes every 1/32". Detachable fence for hard aligning to edges. Pencil included. USA