Founded in 1976, DMT is the leading innovator of manual diamond sharpening technology for people and industries dependent upon high performance edges. Incorporating diamond’s ability to abrade hard metals, DMT's engineering and product development expertise and patented processes have evolved and expanded to service industrial, commercial and consumer markets. The company offers sharpening solutions for virtually every user-from do-it-yourselfers to professionals and large commercial operations. DMT® specialized, precision sharpening systems function easily and efficiently to sharpen, hone, lap or deburr in the production, maintenance and repair cycles of a myriad of products.

DMT® continues to be an entirely ‘Made in the USA’ company with all products manufactured in the company’s facility in Marlborough, Massachusetts and distributed throughout the world.Originally a manufacturer of grinding wheels the company repurposed a center punch-out of a diamond grinding wheel and developed an entire new way of manual sharpening. After testing a sample of a center punch out sent to them, a purchasing agent for L.L. Bean extolled the product’s sharpening performance and worked with the engineers at DMT® to refine the resulting product.