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HARTMETALL ESTECH AG, seated in Hitzkirch in Swit- zerland, manufactures cemented carbide blanks and hard metal tools ground to tolerances for different markets such as automotive, aeronautics, mechanical engineering, packa- ging industry, plastic processing, communication, electro- nics, medical technology, food processing and chemical in- dustry. Our cemented carbide grades are used in punching, die-cutting, forming and pressing tools, as slide rings, nozz- les, bushings, guides, cutting and machining tools, for wear protection, and in special tools.

Sigmacarb SA, located nearby Lugano (Ticino-Switzerland), has been on the Swiss and foreign markets since 1998 as a manufacturer of Cemented Carbide products.
Its founder, Luigi Radicchi, can boast more than thirty years’ experience in the field, investing his highly-skilled know-how into the company, which has contributed to its rapid, strong and continual development.
We are a young and dynamic company that is passionate and enthusiastic about carrying out non-stop research and making progress. In doing so, we can keep up with the increasingly demanding and complex requirements of the market, as well as its rapid changes.
Whether it’s one of our standard products you need or something custom-made, Sigmacarb SA is a trustworthy and proactive partner in all sectors where the use of quality cemented carbides is a winning solution.

CERATIZIT – a pioneer in the hard metal industryFor over 90 years, CERATIZIT has been a pioneer developing exceptional hard material products for cutting tools and wear protection. Headquartered in Mamer, Luxembourg, the company develops and manufactures highly specialised tungsten carbide cutting tools, inserts and rods. With over 6,000 employees at 24 production sites and a sales network of over 50 branch offices, the CERATIZIT GROUP is a global player in the hard metal industry and the market leader in the manufacturing of cutting and precision tools, rods and preforms. CERATIZIT GROUP is also the market leader in several wear part application areas, developing successful new types of hard metal, cermet and ceramic grades, which, for instance, are used in the wood and stone working industry.CERATIZT GROUP - four competence brandsThe internationally recognised CERATIZIT GROUP provides a wide portfolio of carbide solutions for various industries and applications from each of our four competence brands: Cutting Solutions by CERATIZIT, Hard Material Solutions by CERATIZIT, Tool Solutions by CERATIZIT and Toolmaker Solutions by CERATIZIT.