Founded in Newcomerstown, Ohio, in 1968 as Herco, H3D Tool Corp designs and manufactures custom cutting tools for woodworking and precision metalworking. The Dyer family’s 1993 3-D Diamond Tooling venture and the 2008 merger that created H3D expanded the company into PCD diamond tooling, insert tooling, tool rebuilding and precision-machined components. Today, its Ohio and North Carolina manufacturing locations support custom work from reverse-engineered profiles to specialized cutterheads, including the quick-change Terminus and dynamically balanced HelixHead lines.
Ohio Drill & Tool CompanyOhio Drill & Tool Company has been manufacturing precision-ground drills and cutting tools in the same Homeworth location since 1948. Founded by George and Helen Sanor as a basement maker of ballpoint-pen drill bits, the family-owned business now spans three generations and continues to make its tools in the USA. Its work is built around precise workmanship, personal service, and dependable order fulfillment.HOMEWORTH, OH
Alcon Tool CompanySince 1946, Akron-based Alcon Tool Company has designed and manufactured custom industrial cutting tools, carrying each job from engineering and production through refurbishment. Founded in the Rubber Capital of the World, Alcon built its early reputation serving tire and rubber manufacturers and now supplies precision tooling worldwide, with more than 100,000 square feet of in-house production space. Its blend of hands-on tooling craftsmanship, reverse-engineering know-how, and advanced five-axis CNC machining supports demanding applications across manufacturing.AKRON, OH
E. C. Kitzel & Sons, IncFounded in 1927 by master toolmaker Edward Carl Kitzel, E. C. Kitzel & Sons manufactures precision diamond and CBN cutting tools, with most tooling custom engineered to a customer’s print or application. The Parma, Ohio company combines traditional toolmaking with EDM, edge-grinding and inspection equipment, and also repairs and reconditions diamond and CBN tools. Its specialized commutator tooling is an original Kitzel design, giving the company a distinctive niche alongside its broader superabrasive work.PARMA, OH
National Diamond Tool and CoatingNational Diamond Tool and Coating is a family-owned Westlake, Ohio manufacturer of custom PCD and CBN tooling, with diamond-tipped tools made in the USA at its 20,000-square-foot facility. Founded in 1994 by Thomas Abersold, the company remains under family leadership, with his son Bill serving as president since 2017. Alongside custom manufacturing, it repairs and retips tools from other manufacturers and provides diamond coating services for demanding machining applications.WESTLAKE, OH