Founded in Dayton in 1962 as Superior Rotary Tools, Superior Abrasives now manufactures coated and nonwoven abrasive products for grinding, finishing and polishing. Its history reaches back to Dayton’s abrasive-specialty trade in 1942, and the company supplies standard products while its engineers develop tailored solutions for demanding aerospace, medical and power-generation applications. The business moved into a 100,000-square-foot manufacturing facility in Vandalia in 2016 and became part of the RÜGGEBERG GROUP in 2012.
California Proposition 65
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Abrasive TechnologySince 1971, Abrasive Technology has built its identity around solving difficult precision-grinding problems for manufacturers worldwide. Headquartered in Lewis Center, Ohio, the company designs and makes custom superabrasive tools for demanding applications, with particular depth in aerospace and defense as well as dental work. Its engineering team supports customers from initial design through application testing and ongoing tool service.LEWIS CENTER, OH
Coastal DiamondSince 1990, Coastal Diamond has made diamond and cubic boron nitride (cBN) superabrasive cutting and grinding wheels at its Mentor, Ohio facilities for manufacturers in the United States and abroad. Its engineers develop proprietary bond formulations and application-specific wheels, including solutions for demanding work such as aerospace finishing, precision tooling, and saw sharpening. Coastal Diamond also has decades of experience supplying replacement wheels for Blanchard, EWAG, and Vollmer grinding equipment.MENTOR, OH
Regal Diamond Products CorpFounded in 1958, Wickliffe’s Regal Diamond Products Corp. makes superabrasive grinding wheels, diamond tools, and polishing compounds for demanding industrial applications. The company was an early adopter of CBN and has spent more than five decades developing grinding solutions across evolving bond technologies, with an experienced team helping customers match products to their processes.WICKLIFFE, OH
Wendt USA, LLCBuffalo-based Wendt USA, LLC manufactures coated and nonwoven abrasive tooling for grinding, finishing, and polishing applications as the North American arm of family-run G-WENDT. Founded in 1971, the company traces a distinctive product heritage to its founder’s 1988 invention of the flap disc on a fiberglass backing plate, and it has manufactured in the United States since 2006. A newly renovated Buffalo facility reopened in 2024 to expand production capacity and inventory.BUFFALO, NY