PCD tools
made in Grand Rapids, MI

manufactured and serviced in high precision

LACH DIAMOND INC. – located in Grand Rapids, MI – has been one of the leading manufacturers of diamond, PCD and CBN tools and has been equated with progress, precision and quality since 1982 – now 40 years in service.

As the only company worldwide with the product portfolio of turning, drilling, milling and grinding tools LACH DIAMOND INC. develops and manufactures customer-specific solutions, e.g for the automotive and aerospace industries. The company is closely intertwined with its over 100 years old counterpart in Germany: LACH DIAMANT. 

Satisfied Customers

“We were originally running parts with solid carbide tools and were having issues going through excessive amounts of tooling, along with long cycle times, since coolant wasn’t an option. […] Being our first step into PCD tooling, we didn’t know what to expect, but Lach Diamond did a fantastic job and helped us utilize the PCD tools to their full potential. The parts that used to take nearly 6 hours per cycle, have been reduced to only 35 minutes. Tool wear has greatly gone down as well, partially due to the PCD material, but also the tool pathing changes we could make due to the custom tooling they designed.” 

Ryan Payne, TPI

Customized Solutions

Along with the manufacturing of our standard products we develop tailor-made solutions for your specific application. Special dimensions are produced according to your requirements.

Customer Satisfaction

Photo: Horst Lach (2nd generation) and Robert Lach (3rd generation), CEO’s LACH DIAMANT and LACH DIAMOND INC./ Jakob Lach GmbH & Co. KG

As a third-generation family enterprise we work with passion on ever new challenges. It is our motivation to find solutions together with our customers and to optimize their work processes.

About the past 100 years we can proudly say that our visions have (not only one time) turned the industry, since reflecting and rethinking of the well-known and thus defining the future is part of our DNA.

Become part of our visions. We look forward to receiving your inquiries.


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