C182 Steel Protractor C182,C183 Steel Protractors Steel Protractor, 6"/150mm, 0-180 The Starrett C182 Steel Protractor is 3 ounces and features a satin chrome finish, furnished with one needle point and one cone point. 6" (0-180 Deg) FEATURES: Designed for those who need a protractor that will allow the drawing of any number of radial lines at any angle through a common center When not in use, the fulcrum point can be drawn back into the hub and frictionally held in a safe position Satin chrome finish for ease of reading and resistance to rust Round head Weight is approximately 3 ounces SPECIFICATIONS Made in America: Yes Blade Length (in): 6" Blade Length (mm): 150mm Range (Deg): 0-180