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drilling out rivets

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John Brunke

Joined: 10 Jan 2006
Posts: 43

Posted: Tue May 16, 2006 4:17 pm Post subject: drilling out rivets

Dear Listers,



I've been following this list for a long time and know I'll see some good 

replys.



I just started a -7 tail kit.  Obviously drilling out rivets becomes part of 

the process.



There is a tool called a "multi-master" made by Fein.   It is usually used 

in woodworking but I

tried using it as a rivet removal tool on a test piece that I put together. 

The multi-master is usually used

for sanding, but comes with cutting tools.   The cutting tool can lie flat 

on a surface and make a cut to

material sticking up from that flat surface such as a shop head on a rivet. 

I was able to cut through the

shop head very easily and used a punch to remove the rest of the rivet.  It 

was quick and I didn't have to

worry about enlarging the drilled hole.  I don't think it would work well 

where the hole was dimpled, but

did well on a flat surface.



My question is to ask anyone to tell me what is wrong with using this 

procedure?   I welcome any comments.



Thanks,

John Brunke

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James Baldwin

Joined: 16 Jan 2006
Posts: 23

Posted: Tue May 16, 2006 6:32 pm Post subject: drilling out rivets

Hey John -

When a rivet is driven, it expands to fill the dimension, radially, of 

the installed hole.  Sometimes this leads to a little expansion of the 

native material, but "usually" it is not very much.  It "usually" works 

to install a similar size rivet to re-rivet the pieces together again, 

especially if the original rivet was removed accurately.  This is why 

edge distance is one of the considerations in rivet pattern layout.  My 

question is: where do you get the tool you describe?  Thanks.  JBB



J. Brunke wrote:

 	  Quote: 	
		   



 Dear Listers,



 I've been following this list for a long time and know I'll see some 

 good replys.



 I just started a -7 tail kit.  Obviously drilling out rivets becomes 

 part of the process.



 There is a tool called a "multi-master" made by Fein.   It is usually 

 used in woodworking but I

 tried using it as a rivet removal tool on a test piece that I put 

 together. The multi-master is usually used

 for sanding, but comes with cutting tools.   The cutting tool can lie 

 flat on a surface and make a cut to

 material sticking up from that flat surface such as a shop head on a 

 rivet. I was able to cut through the

 shop head very easily and used a punch to remove the rest of the 

 rivet.  It was quick and I didn't have to

 worry about enlarging the drilled hole.  I don't think it would work 

 well where the hole was dimpled, but

 did well on a flat surface.



 My question is to ask anyone to tell me what is wrong with using this 

 procedure?   I welcome any comments.



 Thanks,

 John Brunke



 http://www.matronics.com/Navigator?RV6-List

 http://wiki.matronics.com

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John Brunke

Joined: 10 Jan 2006
Posts: 43

Posted: Tue May 16, 2006 9:26 pm Post subject: drilling out rivets

JBB,



The Fein web site can be found through a search engine.   I checked and the 

web site for the multimaster is:



www.fein.de/corp/de/en/multimaster/index.html



Hopefully if I did that right, you can just click on that and it should take 

you to it.  My wife bought this for me for

Christmas a few years ago.  I didn't think I would use it, but it has a fair 

amount of versitility.  Today when I was

trying to figure out the "drill out" situation, I never thought the Fein 

would work as well as it did.



Good luck,

John



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midgriff(at)yahoo.com
Guest

Posted: Wed May 17, 2006 5:22 am Post subject: drilling out rivets

The Fein tool sounds, well, fine <grin>... having never seen the procedure you describe, the only concern I would have is how much that cutting head would  mark up the aluminum surface  you were resting it against.  It seems to me it might marr it pretty significantly, but if it doesn't I think you may have found a new trick.



My $0.02 worth....



Jeff

RV-6 project, still doing inventory and setting up shop)





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John Brunke

Joined: 10 Jan 2006
Posts: 43

Posted: Wed May 17, 2006 7:37 am Post subject: drilling out rivets

Jeff,

  

 That's the only drawback I have found so far.  If you are not level with the underlying surface you will get some marking.  Of course I used a sanding pad that came with the Fein and smoothed it out pretty easily.  But I could see it being a problem if you dug in to the surface you are resting on.

  

 John

 [quote]   ---

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tlaw(at)klondiker.com
Guest

Posted: Wed May 17, 2006 7:49 am Post subject: drilling out rivets

I tend to agree with Jeff that this tool would sometimes scratch the “Alclad” surface or distort the hole in light gauge aluminum.  As most of the rivets in an RV are not universal head type but countersunk, I think “careful” drilling is the way to go.  

   

Respectfully,  Tom Law,  RV6A,  C-GNJI  

         

  

From: owner-rv6-list-server(at)matronics.com [mailto:owner-rv6-list-server(at)matronics.com] On Behalf Of Jeff Griffiths

 Sent: Wednesday, May 17, 2006 6:19 AM

 To: rv6-list(at)matronics.com

 Subject: Re: drilling out rivets  

  

   



 The Fein tool sounds, well, fine <grin>... having never seen the procedure you describe, the only concern I would have is how much that cutting head would  mark up the aluminum surface  you were resting it against. It seems to me it might marr it pretty significantly, but if it doesn't I think you may have found a new trick.

 

 My $0.02 worth....

 

 Jeff

 RV-6 project, still doing inventory and setting up shop)

 

 

       

  

New Yahoo! Messenger with Voice. Call regular phones from your PC and save big.

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dbris200(at)sbcglobal.net
Guest

Posted: Wed May 17, 2006 6:48 pm Post subject: drilling out rivets

Most rivets will have to be drilled out from the manufactured head side since in most cases you won't be able to get to the shop head side. For this reason you should learn the conventional way of removing them, it's not difficult, it just takes a little practice and then you won't have to go looking for the special tool every time you have to drill out a rivet, which for most of us is/was OFTEN. Also, because most rivets on an RV are dimpled or countersunk, the shank will have to be driven out towards the shop head side which means that the manufactured head must be removed.

 

 Dave B.  -6 So Cal

 EAA Technical Counselor

 

 J. Brunke wrote:

  	  Quote: 	
		  --> RV6-List message posted by: "J. Brunke" <jdoody727(at)comcast.net> (jdoody727(at)comcast.net)   

   

 Dear Listers,   

   

 I've been following this list for a long time and know I'll see some good replys.   

   

 I just started a -7 tail kit.  Obviously drilling out rivets becomes part of the process.   

   

 There is a tool called a "multi-master" made by Fein.   It is usually used in woodworking but I   

 tried using it as a rivet removal tool on a test piece that I put together. The multi-master is usually used   

 for sanding, but comes with cutting tools.   The cutting tool can lie flat on a surface and make a cut to   

 material sticking up from that flat surface such as a shop head on a rivet. I was able to cut through the   

 shop head very easily and used a punch to remove the rest of the rivet.  It was quick and I didn't have to   

 worry about enlarging the drilled hole.  I don't think it would work well where the hole was dimpled, but   

 did well on a flat surface.   

   

 My question is to ask anyone to tell me what is wrong with using this procedure?   I welcome any comments.   

   

 Thanks,   

 John Brunke 

   

   

   

   

   

   

   

   

   

 http://www.matronics.com/Navigator?RV6-List   

   

   

   

 http://wiki.matronics.com

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sharkey(at)sover.net
Guest

Posted: Thu May 18, 2006 7:01 am Post subject: drilling out rivets

Structural AD rivets have a small dimple in the factory head for

identification.  Use this to center a “size smaller” drill and make a hole

through or nearly through the rivet without hitting the parent metal if at

all possible.  This should relieve some of the expansion pressure on the

hole from the set rivet.  Next using a “same size” drill remove the head

of the rivet without touching the parent metal if possible.  The rivet

stem can then be driven out of the hole with a drift punch.  If it’s still

tight drill it out as far as necessary to loosen it, again without

damaging the parent metal.  Ironically if a rivet is hard to remove it was

well set and strong, regardless of how ugly it looked.  Poorly set rivets

tend to fall out of the hole when the head is removed so you know that you

were right to replace them.

Jim Sharkey

RV6 Tip Up Finishing



 	  Quote: 	
		   Most rivets will have to be drilled out from the manufactured head side

 since in most cases you won't be able to get to the shop head side. For

 this reason you should learn the conventional way of removing them, it's

 not difficult, it just takes a little practice and then you won't have

 to go looking for the special tool every time you have to drill out a

 rivet, which for most of us is/was OFTEN. Also, because most rivets on

 an RV are dimpled or countersunk, the shank will have to be driven out

 towards the shop head side which means that the manufactured head must

 be removed.



 Dave B.  -6 So Cal

 EAA Technical Counselor



 J. Brunke wrote:



> 

>

> Dear Listers,

>

> I've been following this list for a long time and know I'll see some

> good replys.

>

> I just started a -7 tail kit.  Obviously drilling out rivets becomes

> part of the process.

>

> There is a tool called a "multi-master" made by Fein.   It is usually

> used in woodworking but I

> tried using it as a rivet removal tool on a test piece that I put

> together. The multi-master is usually used

> for sanding, but comes with cutting tools.   The cutting tool can lie

> flat on a surface and make a cut to

> material sticking up from that flat surface such as a shop head on a

> rivet. I was able to cut through the

> shop head very easily and used a punch to remove the rest of the

> rivet.  It was quick and I didn't have to

> worry about enlarging the drilled hole.  I don't think it would work

> well where the hole was dimpled, but

> did well on a flat surface.

>

> My question is to ask anyone to tell me what is wrong with using this

> procedure?   I welcome any comments.

>

> Thanks,

> John Brunke

>

> http://www.matronics.com/Navigator?RV6-List

> http://wiki.matronics.com

>

>

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John Brunke

Joined: 10 Jan 2006
Posts: 43

Posted: Thu May 18, 2006 7:44 am Post subject: drilling out rivets

Thanks for all the replys.  I agree that drilling out is probably the best 

way to remove

rivets.   I was just looking for another way that might be just as easy as 

drilling out.

It's all part of the learning experience.   And man, I'm learning!



John



---

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