Our Story
In 1978 we set out to build a company that manufactures specialized diamond blades, bits and grinding products of the highest quality. We at Terra have built a truly remarkable business and are known as a world-class manufacturer of diamond tools serving all of North America.
Terra products are designed and built by our skilled employees at our manufacturing plant located in Salt Lake City, Utah.
We are dedicated to keeping production in the USA by empowering all our employees to innovate, improve, and streamline our processes while keeping our prices competitive. Terra’s most important innovations have enabled us to build custom diamond tools which meet our customer’s specific needs and time constraints.
When you need us, we’ll be there
Terra Diamond manufacturing brings the best service to our customers.
Pat O’Day 1948 – 2018
Pat O’Day had a vision. In 1977 that vision took form and became Terra Diamond Industrial. For over 40 years Pat and his wife Judy, with the team at Terra Diamond, have provided truly remarkable products to all of North America. Pat’s passion, and ingenuity in building diamond tools created a world-class manufacturer.
Pat genuinely cared about his employees on and off the clock. He empowered us to contribute and improve the process. He demonstrated leadership and a dogged insistence on getting the product to our customers the way they need it, on time, never compromise our level of service, and to make a product we can all be proud of.
He is greatly missed. He had our backs when we needed it. His gift to his employees was imparting knowledge to perform and excel at their jobs.
We as the Terra Diamond team continue to carry forward his legacy of vision, passion, and ingenuity.

Affiliations
Through our business ventures, we have the opportunity to get acquainted with various companies and organizations that make an impression. This page gives us a chance to share this contact information with you in hopes that it helps you in your search for contacts and services.
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GDM TECHNOLOGIES 1910 South Fremount Drive Salt Lake City, UT 84104 866-443-6729 gdmsaws.com |
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IDA – INDUSTRIAL DIAMOND ASSOCIATION OF AMERICA PO Box 29460 Columbus, OH 43229 614-797-2265 www.ida.com |