20" Aluminum Protractor
Award-winning device gives a variety of measurements!
Ordinary protractors measure an angle. This patented protractor lets you measure the degree of outward or inward angles, angles less than 90 degrees and sloped angles. The brass knob allows you to lock measurements in place to easily transfer angles or bevels. Also, with its extended arms, you can trace the outside lines. An excellent measurement tool for all workshops.