Im going to starting drilling out teh spot welds on my car as a part of my RHD conversion next weekend. And I wanted to hear some opinions on the best type of bits as well as techniques to go about doing something like this.

Thanks for all the help in advance

 

I used a spot weld drill bit.
Looks like that:

 

eastwood tools sell a skip proof bit.



http://www.eastwoodco.com/jump...ODUCT

 

This is what I used. It is similar to the eastwood one except it just has a spring loaded sharp pin in the center instead of a drill bit. For me this matco one worked awesome. Looks like it would work even better than the eastwood one because the eastwood one still has a drill bit in the center which would have a tendency to walk when getting started. I've used the matco one to drill out a couple hundred spot welds and the cutters are still as sharp as new. Look around, there may even be other companies that make the one like the matco one.

 

^ that's definitely better.

 

The first one sucks ***. Tried it and it wouldn't cut a wet noodle. The MATCO spot weld cutter is the ****. Best money ever spent.

 

really thanks for the help i will look into that.

What does it mean by spring loaded sharp pin?

 

also how does that one work? Do i use a normal drill? Just looks weird to me due to the fact ive never used one

 

Yes use a regular drill. Get several of the replacement pins. In case you drill too far and lose the pin inside a boxed section.

 

o alright thanks a lot. Im going to order that up tomarrow when teh customer service department opens. They will also allow me to but replacement pins?

 

You will not have to worry about the pins at all. The cutter head itself is replacable and the pin is held in by the head itself. There is no way that pin will come out unless the whole cutting head comes off. I can try to take a picture of mine to show you better.

 

i think he means replacement pins so when the original wears down (assuming it was re sharpened several times)

 

I got a pair of these for $13.99 @ Northern Tool. It basically cuts around the weld instead of through it. Then just grind down the surface when you are done.

 

has anyone else used this? how well does it work?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kommon_sense &raquo;</TD></TR><TR><TD CLASS="quote">I got a pair of these for $13.99 @ Northern Tool. It basically cuts around the weld instead of through it. Then just grind down the surface when you are done.

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I used this and it worked great for my transmission bracket

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDcompman &raquo;</TD></TR><TR><TD CLASS="quote">This is what I used. It is similar to the eastwood one except it just has a spring loaded sharp pin in the center instead of a drill bit. For me this matco one worked awesome. Looks like it would work even better than the eastwood one because the eastwood one still has a drill bit in the center which would have a tendency to walk when getting started. I've used the matco one to drill out a couple hundred spot welds and the cutters are still as sharp as new. Look around, there may even be other companies that make the one like the matco one.
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would these bits fit a standard hand-held drill chuck?

 

yeah they will fit a standard drill i have a set at work works bad ***. i wish i would have found them a while before

 

bump for the matco one, but like mentioned, buy extra points and bits because if you drill at an angle sometimes you can break off teeth. besides that, its the best way ive found to remove spot welds.

 

Mac Tools also makes a super nice "hole cutter" bit set for spot welds.

 

All the major tool companies have the one with the spring tip. Thats the kit I personally use and have had them for about 8 years now and they are just as sharp as they were the day I first bought them. The company that actually makes them before they're re-badged as snap-on, matco, etc. is called Rota-Broach.
My only complaint is that they walk a lot. Im pretty used to drilling a hole first and then using the tool. The first pic shown with the drill bit makes the most sense, I'll have to pickup a set of those.

 

https://honda-tech.com/zerothread?id=1931943

read that. All the info u need to know pretty much.

I will warn you though. It is a ton of work and if i could go back in time i wouldnt have done it. good luck.