Holes through tubing

[geraldmorrissey]

Anybody got a tool or a process for debudring holes through tubing? The O.D. is easy, how do I get the burr off the I.D.? Tried drilling underside and reaming, that helped, still have a slight burr. Any ideas?
Gerry
Patrol

[jaredyates]

There is such a thing as a blind deburring bit that you chuck in a drill. It has a retractable cutter that allows it to pass through the hole. I saw one at an RV builder's shop but have never purchased one, since they are expensive. What is the application?

https://cogsdill.com/products/deburring-tools/

[geraldmorrissey]

The empennage has weldments that slide on to smaller diameter tubes. Grease fitting holes through elevator hinge fittings is one example.
Gerry

[Lee]

I have used a deburring bit like this with good success.

https://www.aircraftspruce.com/catalog/topages/shavivtools29023.php?clickkey=7152

Lee

[Camflyer]

That's what I was thinking when I read the op question.

[jaredyates]

If the tube is short, what about a rounded file applied parallel to the tube length?

[alaskabearhawk]

I just used a fine-cut round file as Jared suggested to knock the burrs down. I also used something like this to polish the inside of tubing that I had welded: https://www.eastwood.com/autobody/sa...=google&wv=3.1

[Chewie]

Not sure about the clearance but Paul (@alaskabearhawk) posted this video recently, would this work for you?

https://youtu.be/C7nW6E6gL0I