Tradition. Passion.Innovation.


LACH DIAMOND INC. is one of the world’s leading manufacturers of diamond and CBN tools for the machining industry. The US company is a family business that was founded by Horst Lach in 1982. 

The production plant and office is based in Grand Rapids, Michigan. Together with LACH DIAMANT in Germany founded in 1922, the company supplies customers all over the world with diamond and CBN tools “made in USA” and/or “made in Germany”, respectively. 

LACH’s technical development engineers work passionately on refining our standard tools as well as on developing innovative solutions for the specific applications of our customers. The company can look back with pride on several highly innovative and successful patents which have revolutionized the industry. 

More information on the history of the almost 100 year old German sister company LACH DIAMANT in Germany, you may find here

Why Diamond or CBN?

Diamond and CBN are used whenever carbide tools reach their performance limits. The ultrahard cutting materials offer key advantages to the material carbide:

  • tool life
  • precision
  • high-quality outcome

The tool lives of diamond and CBN tools are sufficient to process several 100.000 workpieces. Diamond as the hardest and cubic boron nitride (CBN) as the second hardest material can process even brittle-hard and extremely wear-resistant materials like e.g. high-alloy tool steels, ceramics, GRP,  CFRP with high precision.

How can our tools make your production processes more efficient? Simply get in touch with us!


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