The Starrett 25R Dial Indicator Contact Point Set includes: 14 points with #4-48 screw thread to fit AGD indicators; a regular 1/4" (6.3mm) long point; 9 special form points; a 28 shock absorbing anvil; and 3 extra long points 1/2", 3/4" and 1" (13, 19, 25mm) long. This gage point set features high grade steel, hardened and ground. All points are mounted on a convenient aluminum ring for safe keeping and easy selection. The L.S. Starrett Company manufactures precision measuring tools, metrology, and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.