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Since i've got manifold/turbo/dump/front pipe off, i want to clean up the insides to remove casting marks/rough welds etc, and maybe a little bit of shaping on the manifold. I'm thinking an electric die grinder is the tool for the job. I dont want anything air powered - no space for a compressor.

Any suggestions on make/model or should i use something else?

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damn I was going to say air grinder was the tool for the job.

I guess dremel at low speed and a lot of stones if you have to go electric

How about Makita GD0600 HERE?

Some say that a dremel is underpowered for this work, and this one is the right price for something that wont get used much at $137. BUT a dremel is more useful for other things...

Hey buddy you want a high speed tool the more rpm's the better! get yourself some "flapper" wheels 60-80 grit and a carbite de-burring tool to take the bulk off then use the flapper wheels to clean things up and smooth it out.

If your iround the sth eastern area I would be happy to come out and give you a hand I've worked on supercars for the past 4 years so I'm not too sabby at these things anyhows let me know.

And yeah an electric die grinder with variable speed would be the go, I do prefere air powered tools and have some if your in the area pm me anyhows good luck with it mate.

Sorry mate just saw you were in Sydney any help I could give you just let me know

Edited by The BOP
Hey buddy you want a high speed tool the more rpm's the better! get yourself some "flapper" wheels 60-80 grit and a carbite de-burring tool to take the bulk off then use the flapper wheels to clean things up and smooth it out.

And yeah an electric die grinder with variable speed would be the go, I do prefere air powered tools and have some if your in the area pm me anyhows good luck with it mate.

So 20,000+ rpm is important, but what about variable speed? It looks like i need to get a pro one to get variable speed and its going to be triple the price...

Also, are the carbides ok for stainless as well as cast iron?

tnx

Also, are the carbides ok for stainless as well as cast iron?

steel bits will work on both,

there are alloy bits out there too with a bigger toothing to stop them clogging, dont get these for steel.

  • 4 weeks later...

Yep ! Ive seen that Makita die grinder and for the money it aint bad ! Ive had an AEG one, with a thinner longer snout, for about 20 years and just reciently had it serviced after a lot of years of hard porting.

But the money is in buying good quality tungsten carbide cutting tips !

Good ones run up to about $60 each.

Ive got a tear dropped shapped one that I got when I bought the die grinder and its still going strong.

As Craved said there are 2 types one for steel and one for alloy but you can get away with the steel ones for alloy if you have a bar of soap on the bench and you just hit the tip, while its going, into the soap every so often and will it stop the alloy from stickin to the tip

The $137 makita was fine. I used a single stone tip which didnt seem to wear at all, and a "flappy" one that seemed to wear quickly. I guess a carbide burr would have been quicker but i didnt have much material to remove.

  • 5 weeks later...
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