About us

The DIAMETAL group unifi es three main fi elds of expertise III and high-precision industrial know-how that has been constantly evolving since 1936.
Different from its history and its rich experience, the group provides the international market with standard or high precision solutions personalized in three strong fi elds III.
DIAMETAL delivers its production secrets (expertise, tools, methods, parameters) and even the fi rst tools to its customers.

From the very beginning, the company has specialized in the development and manufacture of hard metal tools and wear parts, watch components and diamond and CBN abrasive tools.
In 1973, DIAMETAL France was founded in Oltingue and in 1995 it was the turn of DIAMETAL Italia in Busto Arsizio. Since January 2009, DIAMETAL has also been operating a subsidiary in Nanjing to support the Chinese market with its own sales team.
The fact that cutting tools, hard metal wear parts and Diametal watch dressings are manufactured with our own grinding tools is the source of special synergies, which our international customers appreciate. Many years of research and development have given us extensive technological know-how, which we have learned to apply in an optimal way to solve our customers’ problems.
We offer products of the highest quality and are certified according to ISO 9001, ISO 14001 and OHSAS 18001.


Areas of activity

In January 2020, Diametal refined its profile and segmented its activities into three divisions in order to quickly and dynamically develop customized solutions for your specific applications.





Watch industry


Machine tools

General mechanics


The three areas of expertise



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