HAEFELI Diamantwerkzeugfabrik AG

We are a Swiss family company, that develops and manufactures high-quality sintered diamond grinding tools from a diameter of ø 0.18 mm and upwards. We are known for our outstanding and constant quality, flexibility, short delivery times, close cooperation with our customers and innovative spirit. Based on decades of experience with customers from a wide variety of industries as well as from research and development, we know how a grinding tool has to be designed for a wide variety of grinding tasks.

The beginnings of our company date back to 1920, when a one-man business was founded, trading in rough diamonds. In 1949, these activities became Haefeli & Co., which began manufacturing precision diamond tools. In 1985, the stock corporation was established which is still also being managed by the family, Peter Haefeli (third generation) and Taro Haefeli (fourth generation).

We are ISO 9001:2015 certified. To know more about the company, you can consult our company brochure. However, we prefer to recommend ourselves through the quality of our products.


Customers with high expectations across a wide veriety of industries - whether large multinational corporations or one-man businesses - rely on us, on our experience and our very special know-how we have acquired as manufacturer in countless grinding projects. Here is a selection of the industries in which we regularly operate:

  • Cutting tool industry
  • Watchmaking industry (so called Haute Horlogerie)
  • Optical industry
  • Medical and dental technology
  • Automotive industry
  • Tool and mould construction
  • Mechanical and apparatus manufacture
  • Wear-protection parts


We have access to more than 400 different bonds that we developed with which a multitude of grinding tasks and materials can be ground. The most common materials that are machined with our tools are:

  • Carbide
  • Technical ceramics like aluminum oxide, zirconium oxide and silicon nitride
  • Technical gemstones (sapphire, ruby)
  • Glass and quartz
  • HSS (high-speed steels)
  • High-alloy tool-grade steels
  • Chromium steels
  • ...

Commitment to apprenticeships

We are committed to the education of our next generation and offer high quality apprenticeship positions. The education of apprentices is a benefit to us and part of the vocational and social responsibility of companies. Hence, we offer apprenticeship positions for polymechanics EFZ. For this we are partnered with libs, the leading provider of basic education in the Swiss industry.

You might want something from us? Contact us, very simple.

Haefeli Diamantwerkzeugfabrik AG
Riedenhaldenstrasse 51
CH-8046 Zürich

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