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not sure what to call this...

RootBreaker

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So a while back on fb i saw this tool.
you drill a hole and its like a hollow rivet thats threadded. you put it in the hole and tool pulls it and sammiches it in like a rivet. then you use a bolt.

i thought it was cool but no use. so i buy this kit for our jeep. drill holes and bang the threadded piece in. was nice and snug. they spin and it sucks..
so i want to find this other tool and put them in..

20200930_175937.jpg
 
this amazon one is for steel inserts looks like the steel will hold up longer and better insert than aluminum
I do have both the harbor freight one works aluminum but they are more for holding a relay to a fender
like the pic above where strength is an issue you will want steel
 
Pay attention to the style also, one of those is a single handed tool like a rivot gun while the other is a 2 handed tool like bolt cutters.

I have the 2 hand style from Amazon and it works great. This style can also do larger inserts (up to 3/8”).
 
https://www.amazon.com/Astro-Pneumatic-Tool-1442-Setter/dp/B003TODXQW

This is the one I have and it works great. One thing a lot of people miss is that the actual inserts are for specific hole sizes, not only diameter but material thickness. Also if you are worried about it spinning, usually thinner material, use a bit of locktite when you install it.

Make sure not to over crimp the insert, it can distort the threads.
 
I have been using them for decades in sheet metal. Aluminum in aluminum sheet and steel in steel. The aluminum are easier, but don't be lazy in steel.

I use the single hand unit on aluminum. The 2 hand one the steel and an air tool on anything over 5/16" with 2 washers, a little oil and a grade 8 bolt.
 
The aluminum ones seem to set ok, if youre using the 1-hand units, but you want to make sure you use good quality rivnuts, and a little locktite on the outside wont hurt anything. If you're using steel ones you need a better setter w/ either longer arms or a bolt style or air.
 
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