Who We Are - Leitech US
Mike Thorson, President: Leitech US
Tony Thorson, Managing Director: Leitech US
The Original. The Standard. The Future.
As the authority in precision measurement and depth calibration for over 30 years, Leitech has been more than just a tool manufacturer—we are the architects of the thread depth gaging category. With the introduction of the Leitech COMBI Gage, we transformed inspection from a manual 'guesswork' process into a repeatable, NIST-traceable science.
Our History
In the early days of precision manufacturing, thread depth inspection was akin to a guessing game. Machinists counted turns while inspectors eyeballed depth steps, and quality labs accepted estimation as standard practice.
Then, Leif Larsen of Leitech Instruments in Gilleleje, Denmark, had a simple yet transformative idea: what if one gage could verify thread size and measure functional depth — simultaneously, in a single check, with a direct numerical reading? This innovation led to the creation of the Leitech COMBI Gage, revolutionizing thread depth inspection forever.
Since 1989, Leitech-US has been introducing that Danish innovation to North American manufacturers. Tony Thorson and Mike Thorson have dedicated decades to educating engineers, machinists, quality managers, and metrologists about a superior method of depth calibration — one demo gage at a time.
Over 5,000 companies across the US, Canada, Mexico, and Puerto Rico have standardized on Leitech thread depth gages. From small precision machine shops to the largest automotive and aerospace manufacturers in North America, the reaction is almost always the same:
"Why didn't I know about this sooner?" This approach not only enhances precision measurement but also streamlines the entire inspection process.
Where We're Going
Manufacturing is experiencing a renaissance. Industry 4.0, smart factories, wireless data, automated inspection, and AI-driven quality systems are transforming the shop floor of tomorrow, making it look nothing like the shop floor of yesterday.
Leitech is at the forefront of this transformation.
The Leitech COMBI Gage's wireless SPC output integrates seamlessly into modern quality management systems. The DMG's standardized motorized torque fits perfectly within automated inspection cells. Moreover, the core principle of the COMBI—offering simultaneous size and depth calibration in one check—is more valuable in today’s data-driven manufacturing environment than ever before. Every thread, every hole, every measurement is now traceable, digital, and certain.
This is not just the direction Leitech is heading; it’s where precision measurement in manufacturing is evolving.
We’re already leading the way.