View Full Version : Spot weld removal tool


chevyboy91188
04-14-2010, 01:23 PM
Does anyone have a good tool for spot weld removal? or does anyone have a home made method that works well? I would rather make one if it is cheaper.

Thanks

tonydanzah
04-14-2010, 01:26 PM
a drill?


....

chevyboy91188
04-14-2010, 01:46 PM
hahaha yes that is the first piece to the puzzle now how about something other than just a plain old drill bit to remove the spot weld.

Ive see the tools on eastwood but that price is crazy. I know someone has developed their own way to remove them without creating huge holes in both pieces of metal

q miester
04-14-2010, 01:52 PM
i have the rota-broach spot weld cutters depending on the size kit you get $30-60

KCarGuy
04-14-2010, 01:55 PM
There is a Spot weld cutter.
Its a Spring loaded "center punch" Arbor with screw on (replaceable) 1/4" round mini holesaws (I guess would be the best way to describe it)
You center punch the spot weld. place this Cutter and cut the outside sheetmetal away from the spotweld.
But each spot weld will have a small 1/4" round section of sheetmetal that needs to be ground away.
Or there is a "step" drill bit that is designed for spotwelds. Mac, Cornwell, Snap-on, matco and even Grainger will carry both.
I've always used the Snap-on spotweld cutter kit with a couple of arbors, replaceable dual sided cutters and a case.
Good luck

Professur
04-14-2010, 02:02 PM
On my present project, there's not a single spot weld that's round. I gave up on the spot weld cutter and just went with the step drill. Then I took one of those 8-in-1 painting tools, a type of scraper + blade and just hammer that between the two pieces. Does surprisingly well.

Moose-LandTran
04-14-2010, 02:10 PM
On my present project, there's not a single spot weld that's round. I gave up on the spot weld cutter and just went with the step drill. Then I took one of those 8-in-1 painting tools, a type of scraper + blade and just hammer that between the two pieces. Does surprisingly well.

That's what a friend of mine uses. Like a putty knife with a V-notch cut in it. I've used it, works great.

ZRX61
04-14-2010, 02:52 PM
i have the rota-broach spot weld cutters depending on the size kit you get $30-60

Thats the puppy :)

Here ya go:
http://www.blairequipment.com/Rotabroach_Cutters/rota_cutters.html

metal1313
04-14-2010, 03:05 PM
ive just used a a large unibit, so i dont go too deep and damage something else. then ive used a painters tool, or more often i use a peice of scrap 1/8 plate with a single beveled edge and a hammer. works well, but i was removing the quarter panel of my last bronco

rsanter
04-14-2010, 03:23 PM
die grinder with a 3/8 carbide ball bit on it

bob

chevyboy91188
04-14-2010, 03:30 PM
Thats the puppy :)

Here ya go:
http://www.blairequipment.com/Rotabroach_Cutters/rota_cutters.html

do you guys use the one wit hthe drill bit center or the punch center?

selohssa
04-14-2010, 04:08 PM
I have used many spot weld cutters over the years. The best tool that I have found is the plasma cutter. If you cut your circle fast enough, you can cut through just one layer of metal. Then after the panel is removed, you just grind off the remaining metal. It sounds goofy but it works very well.

chevyboy91188
04-14-2010, 04:09 PM
that does sound like a good one selohssa only problem is I can't afford a plasma cutter, barely a spotweld cutter set lol

jordacheha
04-14-2010, 04:16 PM
definitely the Blair spot weld cutters...i have the 11082 set..just make sure u drill the center and dont go to deep

chevyboy91188
04-14-2010, 04:18 PM
ok ill be looking into that thanks, if anyone has a home made system still Im always open to ideas

Monte
04-14-2010, 04:41 PM
i like this style:

http://img515.imageshack.us/img515/143/a1qweaq142.jpg

chevyboy91188
04-14-2010, 04:47 PM
I have seen those too any recommended brand?

chevyboy91188
04-14-2010, 05:40 PM
summit has an OTC one that is only 32 any opinions on it?

http://www.summitracing.com/parts/OTC-4485/

I have to place an order from there anyways so if its good ill just get that one

ZRX61
04-14-2010, 06:00 PM
do you guys use the one wit hthe drill bit center or the punch center?


The punch center, that way you don't end up with a hole in the lower sheet of metal.... you just punch holes in the replacement sheet metal & plug weld em :)

Brad54
04-15-2010, 08:52 PM
I just take a good sharp cold-chisel and go between the two panels and break the weld. MUCH quicker than the spot weld cutter.

I wish I'd have just gone with my gut instinct on that, rather than drop $25 for a fancy spot weld cutter before tossing it back in the drawer and breaking out the chisel.

-Brad

shovel
04-15-2010, 08:59 PM
Believe it or not, I've had good luck with the HF spot weld cutter. I am very leery of any of their cutting tools, but the spot weld cutters and the uni-bit copies have both surprised me. Hard to beat for $4.99 http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=95343

eighthd
04-15-2010, 10:48 PM
you can buy spot weld drill bits like monte is showing from Mac tools. If it breaks or gets dull you get it replaced.Mac also has the roto broach and if they break mac will replace them.

skang
04-15-2010, 11:29 PM
SO has bit for air hammer.

sound easy and fast.

nate379
04-15-2010, 11:33 PM
I just bought a few a couple days ago on eBay. $18 with shipping. Got them yesterday.