about CDT

Generations of Craftsmanship

Continental Diamond Tool is a leading producer in the global market for superabrasive grinding wheels and custom tooling. We specialize in the design, manufacture and application of diamond and CBN cutting and grinding products and services for a wide range of industries. These include: medical , oil & gasautomotiveaerospace, cutting tools, power generation, wood & sawelectronics , and many others.

With over 40 years of experience and craftsmanship, each CDT tool is backed by our unmatched ship times and warranty. Both the Continental Diamond Tool main office and manufacturing center are located in New Haven, Indiana.  With these departments centralized in one facility, CDT has the ability for our sales and manufacturing to work together to ensure our customers' satisfaction. 

We are "ANYTHING BUT CONVENTIONAL" with our product and our customer support.  Superabrasive grinding wheels offer a variety of advantages over conventional with overall tooling cost, grinding time and ROI. Our quality craftsmen are experts at producing custom pieces that are made to order. 

Our History in Pictures

Founded in 1973 by Ray Viggiano, Continental Diamond Tool took shape with just 2 employees and 4,500 sq. ft. in New Haven, Indiana.  CDT has been providing technically superior precision tooling to a number of industries ever since.  After multiple expansions to meet product and customer demand, CDT is growing again with a 112,000 sq. ft. manufacturing facility that will accommodate new product releases and future customer needs.  With a motto of "Small Company Values, Large Company Capabilities" CDT has become a worldwide manufacturer of superabrasive grinding wheels and tools.  We welcome the opportunity to meet your most critical tooling requirements.


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No one should settle for conventional, run-of-the-mill work. Request an estimate today.