PROXXON rotary tool VS METABO die grinder

[Andrej]

Hello, maybe someone can advice on which tool would be better for:

1) cutting a 10mm rusted nut without damaging everything around it;



2) making small cuts in sheet steel up to 1 mm.

I was thinking about:

Proxxon IBS/E



Do you know if it can cut or grind steel plates of this thickness?

Metabo GE 950 G Plus



May be this would be more versatile tool overall, with low RPM setting it can also be used with metal brushes. But I am not sure about the cutting disc diameter, I wonder if there is an adapter for smaller cutting discs with thinner shaft (like for dremel tools)?

Or maybe these tasks require 2 different tools, what do you guys think?

 

[Glemon]

Maybe you have already tried this, but PB Blaster and some heat (if you can heat without harming paint rubber whatever is close to the nuts--is that an appliance? Washer/Dryer?

Whatever gives good access that you can control. If you really want to minimize damage you might be able to drill a series of very small holes in the but. Put a vice grips on it and it may sort of twist off/fall apart

 

[OldShadowGuy]

Looks like it's an auto sunroof. I agree with Glemon to try PB Blaster or something to penetrate the rust and break it loose. I personally use Kroil oil and let it soak for a couple of days. Less damage and work if you can get them loose chemically.

That said, I have the Proxxon tool and love it. It's like a Dremel on steroids, and has chucks to use all of the Dremel tools. Might use up a few disks cutting to the stud, you want to cut it down to the start of the threads and then use a chisel to break the nut apart. Might have to use a steel drill to get the last little bit of the nut next to the panel in order to keep from cutting/damaging the panel.

Good luck, I hope the penetrating oil solutions work for you first.

 

[Andrej]

Hi Gkemon and OldShadowGuy, thank you for the advice! It is an auto sunroof. The metal on the sunroof has corroded, so I'll have to find a one in better shape or made out of glass and replace it ant those nuts might be a problem. Of course, if those nuts do not unscrew, the first thing to try would be some chemical solution.

But still, I might have some other uses for a rotary tool with cutting disc, for places there an angle grinder with 125mm disc is a bit too big. And cant decide which of these tools would be better.

 

[mr.lemons]

Maybe dumb question. How do you get pb blaster to penetrate upwards, against gravity.

 

[bob15]

Maybe dumb question. How do you get pb blaster to penetrate upwards, against gravity.

Wicking

 

[mr.lemons]

Wicking

So, hold up a damp rag or? I think with just spraying oil, it would drip off rather than wick upwards?

 

[BD1]

As for a Metabo die grinder, the compact variable speed one is awesome !! A wide assortment of bits available and using a wire wheel at slow speeds extends wire life.
Teresa are a variety of cutting wheels available.
A Dremel brand is what I use. I gave a few and the variable speed is a must. The have smaller diameter cutting wheels. They work fine but for what I do don't last long.
The tool saves the day for tight quarters work.
Both tools have their places so I bought both.
Dremel is definitely light duty where as the METABO will go on forever.
I also have 4 METABO 4 1/2 "- 5" grinders.
My first is 30 years old and still going.


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[seber]

If you have sufficient access I'd use a nut buster. Hard to tell from the photo. Otherwise, as previously mentioned, drill small holes in a line across the nut on both sides. Chemicals will not free a rusted nut no matter how long you wait. Rust locking is a physical interference. You have to break that crystal lock before the lubricant can help.

 

[Dumber than lumber]

Drill it?
Just regular HSS drill bit is what i would try first. Cobalt if you have them.
So once you have castrated your sunroof ...?

 

[Andrej]

As for a Metabo die grinder, the compact variable speed one is awesome !! A wide assortment of bits available

Hi BD1, have you ever tried using smaller accessories on a Metabo die grinder, like in this video?

 

[darkzero]

Maybe dumb question. How do you get pb blaster to penetrate upwards, against gravity.

With a car rotisserie of course!

 

[BD1]

Hi BD1, have you ever tried using smaller accessories on a Metabo die grinder, like in this video?

Wow, thanks that is slick. I never saw that before. I did read that a reducer is available from 1/4 to 1/8.
The Dremel collet idea is perfect. I'll have to try that, thanks .


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[Andrej]

I'll have to try that, thanks .

I really do not know if this is safe, I guess a small disc on a bigger grinder can shatter and target someones eye

I hoped someone had experience with this setup and can share their opinion. But if this is not a common combination, maybe it is not the best idea. So anyway please be cearful!

 

[BD1]

I really do not know if this is safe, I guess a small disc on a bigger grinder can shatter and target someones eye

I hoped someone had experience with this setup and can share their opinion. But if this is not a common combination, maybe it is not the best idea. So anyway please be cearful!

Thanks, Yes I agree. It's a good idea but user needs common sense when using.
My Compact METABO is variable speed and those 1/8 shanks are not designed for real use. Dremel tools and accessories are fine but I feel they are for craft work.


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