best spot weld cutter ?

[gtx6970]

Well ?

Gotta 1968 Charger coming in and need to remove some sheetmetal

[Troy]

Blair.
http://www.summitracing.com/parts/BRC-13224/

Smyth Automotive (paint center) carries some very similar that I have used in the past and I'm sure Kentucky Motors probably has them too. I use the 3/8" version but I believe you can also buy them in 1/4". Use lots of cutting oil. I used one bit to remove the front floors in the Charger, disassemble a 69 front clip, and remove the trunk pan, extensions, and tail panel on the Challenger.

If you're pulling floor pans that are even remotely rusty I've found that an air hammer/chisel is much better/faster when you're against something thick (like a frame rail). I've also used a grinding wheel in tight spots. I'm getting good at tearing things down...

Troy

[bull]

An air hammer with a nice cutting chisel works great. I recently cut the rear crossmember spot welds out of my car with this:

[Domino]

Another tool in the arsenal is a die grinder with a round/spherical burr (followed by the air chisel)

If the outer layer is to be saved, I use a 1/4" burr and make a deep crater.
If the outer layer is scrap, go with 1/2" and make a shallow crater.

[PA Dodger]

I used the one Troy recommended and it works great. You can remove the spot weld without distorting any panels. then you just dress down the remaining weld. It's a little more finesse than an air chisel or grinding wheel.

[TexasStroker]

Blair
x2

[Silver R/T]

This one works the best

http://www.ebay.com/itm/8mm-Spot-Weld-drill-bit-cutter-Snap-blue-point-/120729950230?pt=LH_DefaultDomain_0&hash=item1c1c10d816
It stays sharp for LONG time, (I've removed 2 quarter panels with it so far) and It DOES NOT hurt underlying panel so you can just weld right on the spot where old weld used to be. It does not leave holes that you have to weld afterwards.
However if you want to go cheap route there work good for low price
http://www.harborfreight.com/3-8-eighth-inch-double-sided-rotary-spot-weld-cutter-95343.html

[gtx6970]

This one works the best

http://www.ebay.com/itm/8mm-Spot-Weld-drill-bit-cutter-Snap-blue-point-/120729950230?pt=LH_DefaultDomain_0&hash=item1c1c10d816

That is what I had  in mind . Something that leaves the underlying metal as intact as possibile.
I assume these work in a normal 3/8" drill ? same as normal drill bit

TIA btw

[Silver R/T]

Yes. they work great.

[PA Dodger]

Thats exactly what the Blair tool does. The center point is spring loaded so it doesn't penetrate anything.It leaves a ring of the top panel material to be ground down flush. You can also replace the cutter when it gets dull. I got mine from Eastwood with 2 different diameter cutters.

[Silver R/T]

Thats exactly what the Blair tool does. The center point is spring loaded so it doesn't penetrate anything.It leaves a ring of the top panel material to be ground down flush. You can also replace the cutter when it gets dull. I got mine from Eastwood with 2 different diameter cutters.

Not exactly true. If you're not careful with it you will go through both panels and why would you have to grind off leftovers from the top panel.
The one I've shown in picture cuts 1st panel off completely. Just use spring loaded center punch to make drilling start easier
http://www.harborfreight.com/spring-loaded-center-punch-621.html

[Troy]

I've not had much luck with that kind (I have a couple laying around). If you push too far on either you'll cut the underlying piece. You do have to grind down the "ring" that is left after using the Blair tool but, in my opinion, it's easier to control. Plus, if you cut through the piece you're keeping you now have a perfect hole for plug welding in exactly the same spot where the original weld was - and no grinding involved. I wouldn't do that on a frame rail of course.

Troy

[ktneifert09]

I've done both quarters, both floors and the rear panel with the Harbor freight bits. I've gone through about 7 or 8 of them but theyre only $3. That's my recommendation.

[69*F5*SE]

Blair gets my vote as it has worked very well for me.  Get the skip proof pilot cutter.   

[gtx6970]

Thanks for all the recomendations boys.
Ted Stephens dropped of a whole bunch of sheetmetal last monday.

The intended car will be picked up mid- to late Sept . so I have some time to find the best one to use

[69*F5*SE]

Here's the one you want from Blair:

http://shop.blairequipment.com/Premium_Skip_Proof_Spotweld_Cutter_p/11093.htm

Got mine cheaper on ebay but, you may find it at your local bodyshop supply. Get the kit that comes with 3 cutters and an extra pilot bit.

[The70RT]

Napa sells a decent one.

[elitecustombody]

I've tried them all, Blair is the only cutter I use