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Old 02-27-2018, 12:36 AM
CubedRoot's Avatar
CubedRoot CubedRoot is offline
Join Date: Sep 2013
Location: Ooltewah, TN.
Posts: 548
Default So, I broke a Tungsten bucking bar, in half.

Well, this is the first time I have ever seen this. While working on my flaps the other night, I was happily riveting the top skin to the spar, and I noticed that my bucking bar felt....weird.

I keep it wrapped in athletic tape to make it easier to handle, and to keep it from scratching my surfaces on the non-bucking ends. But after about 20 rivets or so, I noticed it felt "floppy". After un-wraveling the tape, my heart sank just a tiny bit. One of my favorite tools had given up the ghost...

Here's what it looked like with the tape on, and slightly "floppy":

And a close up shot of the break itself:

This was from an Isham took kit, so I sent off an email to see if this might be covered under some sort of warranty. I sure hope so, considering these things are $130+. It kind of looks like there is some contaminants in the tungsten when it was made as you can see the specks in the photo.

Has anyone else ever had one of these expensive tools break on you like this?
Lynn Dixon
RV-7 Slider -
Tail kit Completed - March 2017
Wing Kit Started - June 2017
My Build Log:

VAF Donation paid for 2017
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Old 02-27-2018, 05:38 AM
Ron B. Ron B. is offline
Join Date: Nov 2007
Location: Yarmouth, Nova Scotia
Posts: 2,247

No , but have you ever dropped it on a concrete floor? I'm told that they could break if dropped.
Thanks Ron
RV-14 Flying
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Old 02-27-2018, 05:43 AM
mike newall's Avatar
mike newall mike newall is offline
Join Date: Jan 2005
Location: Yorkshire, England
Posts: 1,693

JB Weld, inspected...Satis
"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q

Donated in 2018
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Old 02-27-2018, 05:47 AM
Vlad's Avatar
Vlad Vlad is offline
Join Date: Oct 2008
Location: NJ
Posts: 7,537

Originally Posted by mike newall View Post
JB Weld, inspected...Satis
Second that. I know a guy who glued tungsten.
Where is N666BK?

Не имей сто рублей, а имей сто друзей.
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Old 02-27-2018, 08:04 AM
Djgeib Djgeib is offline
Join Date: Jun 2012
Location: Fernandina, Fl
Posts: 58
Thumbs up

Looks to me like you just made two specialty bucking bars!
Doug Geib
RV8 empennage complete
QB wings started
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Old 02-27-2018, 08:45 AM
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Paddy Paddy is offline
Join Date: Jul 2008
Location: Chicago
Posts: 232
Default Broken

I've got one that looks just like that! I dropped it and it broke in half. As it turns out, the halves are still heavy enough to buck smaller rivets and I've found them quite useful for tight spaces on a number of occasions during my build. It does suck to have to buy a new one tho...
Flying as of 10/30/16 after 8 yrs building
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Old 02-27-2018, 08:48 AM
DennisRhodes DennisRhodes is offline
Join Date: Jul 2007
Location: Taylorsville, Ga
Posts: 633

Tape up the broken end and now you have two at $130 each. Most people jump at the chance to double their money or investment !!
2018 VAF dues paid
RV9 N908DR
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Old 02-27-2018, 08:51 AM
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Lemmingman Lemmingman is offline
Join Date: Jun 2010
Location: McKinney, TX
Posts: 683

Tungsten is more brittle than your average steel. I knew that this was a possibility before I bought mine. Every time I've dropped it I cringe hoping it only breaks in two pieces.
Gil Brice
McKinney, TX EAA-1246
RV7 - Working on fuse, fuel, brakes etc...
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Old 02-27-2018, 08:55 AM
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bkervaski bkervaski is offline
Join Date: Mar 2017
Location: Birmingham, Alabama
Posts: 894

cat bar1 bar2 > newbar
#140376 RV-14A QB IO-390 Thunderbolt
Registered: N196
Progress: Flying!
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Old 02-27-2018, 10:12 AM
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BruceEicher BruceEicher is offline
Join Date: Feb 2012
Location: Wilsonville/Aurora KUAO Oregon
Posts: 715

A lot of guys wear tungsten wedding bands, if needed they have to be broken off the finger with a ring cracker. Breaks but you canít cut it.
Bruce, Katie, Hana and RV-8 HulaGirl
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