WE KNOW YOUR WORLD.
AND WE KNOW IT’S NEVER EASY.
Tri Tool’s configurable trepanning systems are designed and engineered for precision, control, and unmatched consistency in some of the world’s most outlandish environments. Built on the field-proven 200-series platforms, our systems consistently deliver shop-grade accuracy with field-ready power — you cut deeper, cleaner, and far more efficiently… wherever your job takes you.
No two projects are alike, and neither are our machines. Tri Tool trepanning systems are configurable, not one-size-fits-all, engineered to adapt to your material, diameter, and workspace. When your project demands large, precise openings through thick-walled materials, Tri Tool delivers accuracy without excess with fully configurable solutions.

Clean and precise, rather than reducing the entire hole to chips (the old-fashioned way), trepanning removes a solid core: saving energy, material, and time while maintaining structural integrity.
In critical operations, every cut counts. Traditional torch or plasma methods can leave heat-affected zones, distortion, and inconsistent results. Trepanning provides a cleaner, safer, and more controlled alternative for high-value materials and mission-critical equipment.
Material Conservation – Retain the core to minimize waste and preserve costly materials such as stainless steel and titanium.
Precision & Repeatability – Adjustable depth, feed, and speed controls ensure consistent accuracy and surface quality.
Safety & Efficiency – Reduced heat, sparks, and distortion make trepanning safer and more predictable than thermal cutting.
Portable & Field-Ready – Mounts directly to vessels, plates, or pipe for precision machining anywhere you need it.
Alignment Accuracy – Rigid mounting systems and centering hardware maintain concentricity on every operation.
Our portable systems bring precision right out into the field — from refineries and hydro plants to shipyards and defense operations, our machines let operators perform trepanning directly on vessels, tanks, and structures, eliminating unnecessary handling and costly downtime.
Tri Tool trepanning systems have earned their place in the world’s toughest industries, not by fitting into predefined limits, but by adapting to the demands of the job. From nuclear facilities and power plants to oil refineries and shipyards, these machines have delivered consistent, field-verified performance under pressure.
The Tri Tool Promise — For over 50 years, Tri Tool has redefined what portable precision machining can achieve. Our configurable trepanning systems continue that legacy, built to perform in the field, proven in the toughest conditions, and backed by engineers who understand your mission.