DIAPOR - Diamantes de Portugal, S.A., established in January 1975, is nowadays a reference in the Portuguese market of diamond tools, either in the industrial sector of Natural Stones or in the Sector of Engineered Metal-Mechanics industries. DIAPOR started activities as importers and wholesalers of the most different kinds of tools and after a while performed a natural evolution to the division of those activities in the two above mentioned Departments. Starting without employees and operating in a very small area of 20 sq. meters, DIAPOR avails today of a large, modern and functional building with 1.400 sq. meters of built area, employing a total staff of 27 people. The most diversified Portuguese industries avail of our know-how in the application field of diamond and CBN tools, which have become indispensable for economical and profitable production processes. Our diamond and CBN tools are used for the most different purposes: cutting, grinding, polishing, sawing, drilling, filing, dressing, honing, formatting, milling, reaming, in the most different companies, from small and medium size to multinational ones, in the Civil Engineering Industry (Cutting and drilling of cement, asphalt and concrete, repairing of roads and high-ways), in the extractive industries (Natural Stone: Marble, Granite, Basalt) and Transforming industries (Metal-mechanics; Woodworking; Plastics and Moulds; Glass: flat, optical, crystal and technical; Shoemaking; Textile; Paper; Cork; Ceramics; Gold and Jewellery; Electrical engineering; Semiconductor and electronics).