New Jersey Diamond Products Co., Inc. was founded by James H. Zambrano in 1966. The company has grown from its humble beginnings into a world class competitive diamond tool manufacturer. From the experience he gained by working for a diamond oil field drill manufacturer, James started his own business when that company relocated to Texas. After one year working out of his basement, he moved the company into its current location in Paterson, New Jersey.
Today, NJDP is owned and operated by James’ two sons Mark and Jim. Further expansions, newer equipment, including CNC lathes and mills, and a highly trained, experienced work force come together to produce some of the best industrial diamond products made in the world today.