Shinwa #183 Square Head Stainless Steel Protractor

This protractor is made by Shinwa Measuring Tools Corporation in Japan. Head and arm are made from stainless steel. Overall closed length is 8" with depth of reach at 5-3/4".  Head measures 3-3/4"  2-1/8". Head is satin chrome plated to reduce glare when reading. Gradations are deeply photo etched and black filled for easy readability. This is a well-made measuring tool that will last generations. 

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov