The L.S. Starrett 2 1/2" Diemakers Double Steel Square No 14 A 10 Grad is a high-quality tool used in metalworking inspections and measurements. With the brand name Starrett known for its precision and durability, this double steel square is a reliable and essential tool for ensuring accuracy in metalworking projects. Made in the USA, this tool meets the highest standards of quality and craftsmanship, making it a valuable addition to any workshop or manufacturing facility.