Precision Seamless Tubing

The Leader in Precision Seamless Tubing

They said it couldn’t be done. They said it would forever change the way they think about machining. And now they believe it; the most precise tubing in the world offered in 12 ft lengths with internal diameters as small as 0.170” and Total Runout of 0.004”. Improve yields and go from tubing to finished components off of your screw machine or lathe. No more need for secondary gundrilling operations. No mill run of material or long lead times required.


We heard you. Your demanding tolerances cannot be compromised. When you need tubing you cannot wait. Grover’s precision tubing is your answer.

Aerospace & Defense

Quality is your calling card, there’s too much at stake. Your tubing provider is critical to your success. Let Grover’s precision tubing answer the call.

Power Generation

Your tubing components have to work day in and day out, no excuses. Time is money and you need the best solution available. Grover’s precision tubing is up to the task.

More About Our Offerings:

Cannulated Bar

We offer Cannulated Bar in a variety of materials with bore tolerances of: +/-.001” ID & 16RMS, and with Total Runout of .004” and below to allow our customers to utilize their valuable machining capacity to efficiently produce a wide variety of precision components with confidence.

Custom Tubing

Our Custom Tubing division is second to none. Whether our customers need low prototype quantities or high- volume production runs, our team and capabilities can provide tubes to their exact specifications.

Advanced Materials

Nitinol, MP35N, L605, Titanium, Magnesium, Aluminum, Brass, Copper, Steel, Stainless Steel, Inconel, Monel, Molybdenum Alloys and more.

Honed Tubing

Day in and day out we provide world-class honed tubes to our customers. We produce highly precise tubes in lengths over 20 feet, achieving drift and finish tolerances vastly superior to industry standards.