Cutting fine metal tubing question

Good ideas GH! Thanks! You are quite correct about the areas of the blade used.

Same with me. I do a lot of Bare Metal Foil on airplanes which means that I ruin the blade tips really fast. I save the blades for work that does not require the tip.

I also keep old blade on hand for various uses. But for things that dull blades quickly, I keep one handle with one that has the 45 degree cutting edge. I find that shorter edge seems to hold its edge longer. May be something about how the force gets applied.

If you do get any distortion of the material, you can use a sewing needle or a straight pin to re-shape the opening and round it back out. I’ve done this when I’ve gotten some squashed tubing.

You might need to file or sand the edges and remove any burrs created when cutting or snapping the tube, anyway.

Thanks for all the ideas, tips, suggestions, etc.