For more than 60 years, Hewlett Manufacturing of Linesville, Pennsylvania, has made diamond-coated sharpening tools, including the original oval diamond steel perfected by founder Harlan D. Hewlett. The family business grew from OEM manufacturing into the JewelStik® brand and supplies sharpening tools to established knife companies while producing its products in the USA for home, shop, and professional use.
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
Redi-EdgeSince 1994, Redi-Edge has manufactured compact knife sharpeners in the United States, including the field-proven Tactical Pro developed in response to a request from U.S. Army Rangers. Its sharpeners use preset angles and durable Duromite cutters to give users a repeatable edge, with products backed by a limited lifetime warranty.BARBERTON, OH
Cutco CorporationSince 1949, family-owned Cutco Corporation has made American-made knives at its factory in Olean, New York, along with kitchen solutions for home cooks. The small-town manufacturer is known for its Double-D recessed edge, long-running craftsmanship and The Forever Guarantee, which includes free sharpening and service intended to keep products performing like new. Cutco became privately held through a management buyout in 1982 and celebrated 75 years of manufacturing in 2024.OLEAN, NY
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