A Legacy of Precision
The experts at the forefront of precision applications trust Tru-Stone to manufacture custom precision solutions that are engineered for exacting accuracy. Our reputation for truly top-quality precision solutions in granite, ceramic, carbon fiber and other mediums began over seven decades ago, and we continue to proudly uphold that legacy today.

1960s
THE LEGACY BEGINS
Founded in the 1960s, Tru-Stone entered the precision granite market focusing on granite surface plates, squares, parallels and straight-edges used in general machine shop measurements.
1980s
BIGGER & BETTER
Our growth as a company necessitated more space, so Tru-Stone moved operations to the then-new Waite Park Industrial Park in the early 1980s.


1990s
AN INDUSTRY LEADER
Adopting industry best-practices, Tru-Stone implemented and achieved ISO 9001 certification and 17025 lab accreditation in the 1990s.
2000s
CONTINUAL EXPANSION
As we broadened our capabilities for more complex granite assemblies, markets and process automation, we underwent multiple expansions throughout the 1990s and mid-2000s.


2006
A NEW ERA
In 2006, Tru-Stone was acquired by the L.S. Starrett Company, a manufacturer of precision measuring tools, sawblades, and other machinist tools since 1880.
TODAY
THE LEGACY LIVES ON
Now in Tru-Stone’s sixth decade of success, another expansion is planned for 2023.
