The Brown and Sharpe Machinist Precision Square Set is a high-quality tool set designed for metalworking professionals. Made of durable steel in the United States, this set includes squares with blade lengths of 6 inches, 4 inches, and 2 inches, all with inch graduation style. The brand, Darling Brown & Sharpe, is known for producing reliable and precise measuring tools, making this set a valuable addition to any CNC, metalworking, or manufacturing business.