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Old 03-11-2018, 02:13 PM
spaceflightmeow's Avatar
spaceflightmeow spaceflightmeow is offline
Join Date: Oct 2013
Location: SoCal
Posts: 83
Question Alternatives to double-offset rivet set?

There are plenty of threads here expressing exasperation or defeat after attempting to use a double-offset rivet set for 1/8" AN470 rivets. It is a tricky job: one hand bucks, the other hand squeezes the trigger, and a third hand (or duct tape) keeps the double-offset rivet set from rotating or bouncing off the rivet head.

I came across a couple of potential alternative rivet sets that might work better. Has anyone used these and can you comment on how well these work?

J flush set. Has a 3/16" hole to install squeeze sets or dimple dies.

Elephant leg with 3/16" hole (takes squeeze sets or dimple dies)

Elephant leg with 0.401 shaft (a J-shaped set into which you install another set?? Seems like that would be awkward).
Into the blue again, after the money's gone

Empennage complete minus glass work.
Wings kit in progress.
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Old 03-11-2018, 04:16 PM
rv7charlie rv7charlie is offline
Join Date: May 2006
Location: Pocahontas MS
Posts: 3,888

Anything with an offset is going to cause the same issues. Geometry; not tool. The options you picture are likely to cause more issues; not less. You'll have to manage the set itself flopping around in the adapter, in addition to managing the adapter trying to rotate in the gun, and the gun trying to drive the set at an angle.

You didn't mention where you're trying to rivet. If you're doing something like the ribs to spar, I settled on a long, straight set. The longer straight set allows minimizing the angle caused by the width of the gun. Hitting the rivet head at just a few degrees off perpendicular (or if you bend the rib sideways a bit, true perpendicular) worked much better for me than any variation of offset set.


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Old 03-11-2018, 04:23 PM
YellowJacket RV9 YellowJacket RV9 is offline
Join Date: Oct 2012
Location: Clearwater, FL KCLW
Posts: 1,330

The longer set is a good suggestion. Also, wrapping tape (I used medical tape) around the rivet set and the gun helped to limit the rotation of the offset set, when it was absolutely necessary to use it.

Chris Johnson
RV-9A - Done(ish) 4/5/16! Flying 4/7/16
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Old 03-11-2018, 04:25 PM
BillL BillL is offline
Join Date: Sep 2007
Location: Central IL
Posts: 6,320

I got an elephant foot but did not like it, too springy. Ultimately I never really needed to use it. For the longest time I could not drive a good rivet with a double offset. Tape did not work for me. A couple of clamps and piece of baffle material did the job, cheap to try it out. Good luck, use lots of tape on the set and practice.

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Old 03-11-2018, 04:51 PM
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blueflyer blueflyer is offline
Join Date: Nov 2008
Location: Shreveport, LA
Posts: 1,083

Bill, thats a great photo. I will try and use my offset again now. Prior to your post, it was never coming out of the tray again.
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Old 03-12-2018, 12:33 AM
atalla atalla is offline
Join Date: Jul 2014
Location: Whistler BC
Posts: 208

Originally Posted by blueflyer View Post
Bill, thats a great photo. I will try and use my offset again now. Prior to your post, it was never coming out of the tray again.
I agree. That thing scares me 95% failure rate.

This is a great idea!
Andrew Atalla
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