Automotive or Aircraft punch/flare

[Jay Hilliard]

Just wondering what you guys prefer?

I have used the automotive flares and I know it rounds the hole and has a 1/4" deep flare, where the aircraft puts a 35* bend with 1/8" flare.

[Jay Hilliard]

anyone able to comment on which you prefer/why?

[dontlifttoshift]

I prefer the automotive style, mostly based on aesthetics.

The deeper flare makes a slightly stiffer finished part.

[TheJDMan]

Are you referring to Dimple Die sets? From what I can tell it is less about aircraft vs automotive than it is about the manufacturer of the die set. From what I have seen different manufacturers have slightly different designs. Rivet counter sinks are a little bit different story.

[dontlifttoshift]

I think he is looking specifically at the Mittler Bros punch/die sets......I think.

[Jay Hilliard]

Mitler bros as well as others have the two designs. I have used and actually have a couple of the automotive style punches/flares.

Was wondering if anyone used aircraft style and why they liked it. I can see pros/cons to both styles.