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  #1  
Old 05-03-2021, 08:31 PM
JeremyL JeremyL is offline
 
Join Date: Aug 2020
Location: Maurertown,Virginia
Posts: 119
Default Hole deburring

I’m thinking about buying a couple EZ burrs. Does anyone have experience with these. Are they fantastic additions or could they cause an over deburring issue? The idea of cutting deburring in half is quite enticing.
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  #2  
Old 05-03-2021, 08:34 PM
Presmini Presmini is offline
 
Join Date: Aug 2020
Location: Palo Alto, Ca
Posts: 18
Default

Definitely interested in this as well. I’ve never heard of this..but whoa..those are cool.
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  #3  
Old 05-03-2021, 08:49 PM
xkape xkape is offline
 
Join Date: Apr 2019
Location: East PA
Posts: 24
Default

Those look slick, I've never seen them before. But for $80 (on amazon) I don't know if it's worth the extra hassle over just getting a countersink bit chucked into a drill and giving every hole a quick blip of the trigger on both sides.

I feel like I'd treat this the way I do my pneumatic cleco tool. Thought it was a great idea and worth the money but then I just don't ever use it.
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  #4  
Old 05-03-2021, 10:00 PM
ScottK ScottK is offline
 
Join Date: Feb 2007
Location: SLC, UT
Posts: 52
Default

I ran across a few YouTube videos of these (or tools like these) in action. They look...aggressive. It seems to me they're meant for working with considerably heavier and harder stuff than airplane aluminum. I think it's likely these would create overt chamfers or even enlarge the hole in thin sheet. But if you try, by all means, let us know how it works.
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  #5  
Old 05-04-2021, 05:14 AM
fixnflyguy fixnflyguy is offline
 
Join Date: Jan 2006
Location: Winston-Salem, N.C.
Posts: 1,429
Default They have been around a while..but be careful!

I have used them for 40 years, and have them all the way up to 3/4". My day job is a structural specialist for heavy aircraft, and I spent a lot of time working with B737 thin skin failure issues. To the layman, de-burring is a magical novelty that yields a smooth beautifully produced hole, however in thin materials it can be problematic. Think of it this way..the skin/structure transfers load through the fastener into the adjacent structure aka, "bearing strength". When holes are de-burred, the area of the bearing surface is reduced and the condition of knife edging is increased, resulting in fastener movement/failure. In reality, we only try and remove the burr caused by drilling that interferes with stck-up. I have seen folks get really overboard and end up with a hole that has a small countersink on both sides. Those de-burr tools are great for in situ work where access is limited. I actually prefer to de-burr with scotchbrite, a 6 flute countersink with my fingers, or a thumb vixen file on thin stuff.
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  #6  
Old 05-09-2021, 08:26 PM
skybolt31 skybolt31 is offline
 
Join Date: Jan 2009
Location: Westfield, MA
Posts: 81
Default

Quote:
Originally Posted by fixnflyguy View Post
or a thumb vixen file on thin stuff.
What is a thumb vixen file?
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  #7  
Old 05-10-2021, 08:28 AM
fixnflyguy fixnflyguy is offline
 
Join Date: Jan 2006
Location: Winston-Salem, N.C.
Posts: 1,429
Default Thumb Vixen

I don't have picture of it with me, but its a tiny vixen file about an inch long with a little curved wood handle that you pretty much push along with your thumb or finger. Got mine from a Boeing surplus store years ago. The Yard Store sells a palm version about 3" long. The vixen shaves off the burr cleanly..but you risk slightly scratching alclad. Not a worry if priming/painting.
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  #8  
Old 05-19-2021, 09:03 AM
JeremyL JeremyL is offline
 
Join Date: Aug 2020
Location: Maurertown,Virginia
Posts: 119
Default Mixed feelings….

So I’ve used it and I have mixed feelings with it. Some holes it works ok on and other holes it won’t remove a burr or it chamfers the back side of the hole too much and the front ok. Im not too happy with the chamfer it creates in order to adequately remove burrs. So I’ve been trying and using the “larger drill bit method” and the single hole duburr tool. The ezburr is and will continue to be amazing for impossible to reach areas. As they say….. YMMV
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  #9  
Old 05-21-2021, 07:01 PM
Vfr1200's Avatar
Vfr1200 Vfr1200 is offline
 
Join Date: Apr 2020
Location: Celina ohio
Posts: 31
Default Great info

Quote:
Originally Posted by fixnflyguy View Post
I have used them for 40 years, and have them all the way up to 3/4". My day job is a structural specialist for heavy aircraft, and I spent a lot of time working with B737 thin skin failure issues. To the layman, de-burring is a magical novelty that yields a smooth beautifully produced hole, however in thin materials it can be problematic. Think of it this way..the skin/structure transfers load through the fastener into the adjacent structure aka, "bearing strength". When holes are de-burred, the area of the bearing surface is reduced and the condition of knife edging is increased, resulting in fastener movement/failure. In reality, we only try and remove the burr caused by drilling that interferes with stck-up. I have seen folks get really overboard and end up with a hole that has a small countersink on both sides. Those de-burr tools are great for in situ work where access is limited. I actually prefer to de-burr with scotchbrite, a 6 flute countersink with my fingers, or a thumb vixen file on thin stuff.
I have the Ezburr tools also ,,

I have often thought about the tool taking to much material out but as a new builder just used what was easy , I just hit the thin material quick and light , will try the scotchbrite method
I use a under sized bite for drilling then reamer bits for final size and holes are nice and tight sometimes when i deburr it opens holes to much ! Also use the reamer for match drilling
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  #10  
Old 05-21-2021, 11:25 PM
Taltruda Taltruda is offline
 
Join Date: Oct 2017
Location: Las Vegas, NV
Posts: 841
Default

Quote:
Originally Posted by Vfr1200 View Post
I have the Ezburr tools also ,,

I have often thought about the tool taking to much material out but as a new builder just used what was easy , I just hit the thin material quick and light , will try the scotchbrite method
I use a under sized bite for drilling then reamer bits for final size and holes are nice and tight sometimes when i deburr it opens holes to much ! Also use the reamer for match drilling
I love the Burr Away tool. . I don't use it on the .020 skins though. Yes it may cut too much. .you can adjust it though. Take an Alan key, and back off the tension. You also have to find drill speed that works for you. I prefer medium speed, light pressure, and the Alan key tension backed off to almost nothing.
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