In 1926, Albert Diehl founded Diehl Steel in Cincinnati, Ohio to service the needs of one of America’s largest machine tool hubs. Developed from a tool and die background, “Big Al” Diehl knew the importance of responsive, efficient service coupled with high-quality products. After 90 years in business, that tradition of excellence continues today.Over the ensuing decades, Diehl Tool Steel became an international distributor of tool steel, alloy steel, mold steel, carbon steel, stainless steel, CPM powder metal, aluminum pieces, and customized machining services.
