The original “True Angle” Protractors by Quint Measuring Systems. These Lexan™ protractors are the easiest, fastest and most economical devices for measuring any inside or outside angle, from 0 to 360 degrees, that we have seen yet. They are virtually unbreakable and the angles are easy to read. A larger (4 inch) even easier to read dial is sold separately. 10 inch |