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About Us

New Jersey Diamond Products Co., INC.

World-Class Diamond Tool Manufacturer in NJ

Founder - James H. Zambrano

James H. Zambrano founded New Jersey Diamond Products Co., Inc. in 1966. Since our humble beginning, we have come a long way and grown into a world-class diamond tool manufacturer.

James gained much experience by working for a diamond oil field drill manufacturer. He started his own business when that company relocated to Texas. After carrying out meticulous work from his basement, he decided to relocate the business to its current location, in Paterson, New Jersey.


Offering Industrial Diamond Products Since 1966

Today, New Jersey Diamond Products Co. is owned and operated by James’ two sons, Mark and Jim. With changing times, the company has further expanded, and has included CNC lathes and mills.

With our experience, newer equipment, and a highly trained workforce, we have produced some of the most exceptional industrial diamond products that are used in the world today.