Our Story
Precision You Can Trust, Service You Can Feel
Built With Accuracy
The Tool Testing Lab is an ISO/IEC 17025:2017 accredited facility dedicated to ensuring your tools are accurate, reliable, and ready for the job. Our climate-controlled lab handles calibrations for precision instruments, industrial hand tools, and aviation M and TE with speed and consistency. For customers within 200 miles of Dayton, Ohio, we also offer on-site calibration, bringing our technicians directly to your operation. Every new and used tool order includes certification at no added cost.
What truly sets us apart is how we serve people. When you call during business hours, a real person answers. You can speak directly with a skilled calibration technician who will help you understand what you need and how we can support you. If you ever have questions or concerns, a manager or the President of our company is always available to discuss them with you. We are built on relationships and real conversations, not automated phone trees.
Each calibration includes a long-form, NIST traceable certificate with full data for every measurement point and the associated uncertainties. Most services can be delivered with ISO 17025-accredited certificates at no extra charge. Our goal is simple. Give you accuracy you can trust and a team that stands behind the work.
This kind of clarity helps visitors understand not only what you do, but why they should trust you, and it opens the door for more storytelling across the rest of the site.
Precision Tools. Proven Performance.
Explore our complete line of calibrated instruments, test equipment, and measurement tools. Each one is backed by Tool Testing Lab’s trusted expertise. Every product is carefully verified for accuracy and reliability so you can work with confidence knowing your tools meet the highest standards in precision.