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Advice on small dremel metal cutting wheels
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epowell
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PostPosted: Thu Jun 11, 2020 1:35 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

I never had any problems following Libby's advice.

So here is what I ordered (for now). Can't beat the price - this includes shipping to CZ. (in 30-50 days).

36 psc of the red ones, and 36 psc of, I hope, the fiber reinforced ones. (?)
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PostPosted: Thu Jun 11, 2020 2:26 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

The Dremel is hands down my most favorite tool. Just finished using it an hour ago to cut down some SST bolts to shorter length. That was using the red disks too mainly just to use them up. The fiber disks are by far better, but I've had good luck with the "red". They do wear out fast. If you can support your wrist to cut an even line without moving side to side you can have luck without breaking a disk. It helps to not try to cut by pushing into one side, but rather to cut the line you
I've had such good luck that I've never bought any of the Diamond blades because I just have brain fart against proprietary things your forced to buy if you have the only tool that uses them.

The small rotary ball head file works really well to flatten down a broken bolt you want to drill out to try an "Easy-Out" on.
I also use it to create a dimple in the center of the bolt so the drill bit starts without walking off center.
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?Waldo?
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PostPosted: Thu Jun 11, 2020 2:55 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

epowell wrote:
I never had any problems following Libby's advice.

So here is what I ordered (for now). Can't beat the price - this includes shipping to CZ. (in 30-50 days).

36 psc of the red ones, and 36 psc of, I hope, the fiber reinforced ones. (?)
Image may have been reduced in size. Click image to view fullscreen.

Image may have been reduced in size. Click image to view fullscreen.


I am not sure that the bottom ones are fiber-reinforced. There are black ones that are not fiber reinforced and are much weaker. They are stronger than the red but still quite brittle.
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?Waldo?
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PostPosted: Thu Jun 11, 2020 3:02 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

djkeev wrote:
?Waldo? wrote:
0cean wrote:

2nd on this tool... the screw-on disks will spin and loose cutting ability.


If that happens it is simply due to operator error. Never happens to me.


You are probably counted among the few.
If it was not a problem, the new design would still be on the drawing board and not in the stores.

Dave


djkeev, I'm not sure that logic is sound. It seems to me the 'new design' is simply a quick change gimmick to increase the profits and make individuals rely on the proprietary design as opposed to purchasing consumables that are 1/30th of the cost.

4Gears4Tires wrote:
I have never experienced the discs spinning on the screw either.


There is no need to be aggressive in tightening the screw on the discs. The rotation of the tool and the direction of the screw threads are oriented so that the resistance of the disc as it is cutting, tightens the screw.
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Zeitgeist 13
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PostPosted: Thu Jun 11, 2020 3:40 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

I suspect the spinning issue is with cheap knock-off arbors, and not a quality Dremel product.
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0cean
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PostPosted: Thu Jun 11, 2020 3:57 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

4Gears4Tires wrote:
I have never experienced the discs spinning on the screw either.


There is no need to be aggressive in tightening the screw on the discs. The rotation of the tool and the direction of the screw threads are oriented so that the resistance of the disc as it is cutting, tightens the screw.[/quote]

From my experiance, the scew hold is not enough when cutting steal and the extra hold of the metal reinforcment is needed. The cutting wheel stop s as the shaft spins. Neither is a good long lasting tool, yet one is worth the extra cost.
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PostPosted: Thu Jun 11, 2020 4:03 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

As with many areas of life, do what is best for you.

I like the uber super duper proprietary lock on disc,
you like the generic thread on type.

You're not wrong and neither am I.

I won't criticize your choice, you don't criticize mine.... deal?

We're offering options and sharing experiences with each other.
Amazingly the Sun will still come up tomorrow.

Considering the subject matter, as amazing as it seems, I've already cleaned this thread up once.
I have no desire to do it again over something as inane as a fiber cut off disc.

EDIT: 2nd edit done by another moderator! Who knew Dremel was so controversial!

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?Waldo?
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PostPosted: Thu Jun 11, 2020 4:35 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

I have been using the screw style for more than 20 years on automotive projects. I have used the discs for cutting steel, aluminum, stainless, and multiple types of cast iron. I've used them on exhaust bolts, cutting sheet metal, cutting thicker steel up to 3/8" thick, cleaning up welds, etc, etc...

I cut those louvers using only the screw-type fiber reinforced wheels:
Image may have been reduced in size. Click image to view fullscreen.


I've used both Dremel brand and aftermarket arbors and discs and having the disc spin on the arbor has not been a problem. The issue that others speak of is a mystery to me. I even purchased and used the EZ-lock as well, but came to the conclusion they were not even close as good of a value back when I was purchasing the Dremel 25 packs of the screw style. When installing the disc I usually don't even use a tool for tightening the screw, I just insert the screw into the disc, start the screw into the arbor and hold the disc with one hand while I rotate the shaft with the other hand to tighten the screw. I'll happily pay myself $150+* per hour for the job of changing fiber discs.

I'm going to move on from this discussion as it is irrelevant to me what discs someone else uses. EPowell asked for opinions and I was happy to share mine but I have better things to do with my time than argue with anyone on the internet about what is a better value, when the only potential benefit is that I might save them a few dollars.

Carry on and good luck to all with their projects.


*I arrived at that figure assuming that the screw type discs require 15 seconds to change and that the EZ-lock can be changed instantaneously (not true but giving the benefit of the doubt). I also assumed that the EZ-lock discs last 4X as long as the generic screw style which I also feel is overly generous on the side of the EZ-lock.
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?Waldo?
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PostPosted: Thu Jun 11, 2020 4:43 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

djkeev wrote:
As with many areas of life, do what is best for you.

I like the uber super duper proprietary lock on disc,
you like the generic thread on type.

You're not wrong and neither am I.

I won't criticize your choice, you don't criticize mine.... deal?

We're offering options and sharing experiences with each other.
Amazingly the Sun will still come up tomorrow.

Considering the subject matter, as amazing as it seems, I've already cleaned this thread up once.
I have no desire to do it again over something as inane as a fiber cut off disc.

Dave


I never said that you were wrong in your choice. I offered an educated opinion about what I have found to be a better value because that is what epowell asked for. I couldn't care less what cutoff wheels you or anyone else uses. When someone says something and my experience has shown the opposite, I don't mind voicing my opinion in a clear and respectful manner, as I have done throughout each of my comments in this thread. Everyone can benefit from that type of discussion. That is what these forums are for. If you or anyone else take offense at that, then you might want to adjust your view.
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PostPosted: Thu Jun 11, 2020 4:52 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

?Waldo? wrote:
djkeev wrote:
As with many areas of life, do what is best for you.

I like the uber super duper proprietary lock on disc,
you like the generic thread on type.

You're not wrong and neither am I.

I won't criticize your choice, you don't criticize mine.... deal?

We're offering options and sharing experiences with each other.
Amazingly the Sun will still come up tomorrow.

Considering the subject matter, as amazing as it seems, I've already cleaned this thread up once.
I have no desire to do it again over something as inane as a fiber cut off disc.

Dave


I never said that you were wrong in your choice. I offered an educated opinion about what I have found to be a better value because that is what epowell asked for. I couldn't care less what cutoff wheels you or anyone else uses. When someone says something and my experience has shown the opposite, I don't mind voicing my opinion in a clear and respectful manner, as I have done throughout each of my comments in this thread. Everyone can benefit from that type of discussion. That is what these forums are for. If you or anyone else take offense at that, then you might want to adjust your view.


Why so defensive? names were never mentioned. 🤷‍♂️

Just a general comment.......

Dave
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?Waldo?
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PostPosted: Thu Jun 11, 2020 4:58 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

djkeev wrote:
I like the uber super duper proprietary lock on disc,
you like the generic thread on type.


Is there any other 'you' in this thread that you might be talking to? You didn't name any names, but your post was quite clearly directed at me as I seem to be the main proponent for the 'thread on type'. In being directed at me it seemed remarkably off point.

If you had not intended to direct your comment at me, then you should have used better wording, e.g. "some people like the uper expensive proprietary disc, some people like the thread on... everyone, try to be civil and respectful, etc..."
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PostPosted: Thu Jun 11, 2020 5:06 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

Just goes to prove the validity of what a wise man once told me:
"There isn't a project in the world that can't be screwed up with a Dremel"
Very Happy Very Happy
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PostPosted: Thu Jun 11, 2020 5:06 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

All I'm saying is please stopping fighting over dremel abrasive discs.

Posts have been removed that maybe you never saw..... relax.

Dave
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PostPosted: Thu Jun 11, 2020 6:12 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

?Waldo? wrote:
0cean wrote:

2nd on this tool... the screw-on disks will spin and loose cutting ability.


If that happens it is simply due to operator error. Never happens to me.


Ditto here (raises hand) ...

Maybe the Dremel is plugged in the wrong way, and it's rotating backwards? Very Happy Very Happy Very Happy
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?Waldo?
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PostPosted: Fri Jun 12, 2020 8:05 am    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

I would mention one other consideration. Although I have not had an issue with the discs spinning on the arbor, and with proper assembly of arbor/disc and appropriate use of the tool, I'm not sure how that is possible. But if you are doing assembly correctly and operating the tool in a manner that causes the disc to spin on the arbor, then if it did not spin then the rpms would drop significantly and you would burn out the motor very quickly. Although I have not been in that situation, if I was then I would feel better about ruining a $0.10 disc or an arbor rather than paying for the $3 discs in order to ruin the machine.
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PostPosted: Fri Jun 12, 2020 12:22 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

?Waldo? wrote:
I would mention one other consideration. Although I have not had an issue with the discs spinning on the arbor, and with proper assembly of arbor/disc and appropriate use of the tool, I'm not sure how that is possible. But if you are doing assembly correctly and operating the tool in a manner that causes the disc to spin on the arbor, then if it did not spin then the rpms would drop significantly and you would burn out the motor very quickly. Although I have not been in that situation, if I was then I would feel better about ruining a $0.10 disc or an arbor rather than paying for the $3 discs in order to ruin the machine.


There's one other important consideration - size. When I was clearancing my block for the oil return, the much larger EZ-loc disks were the perfect diameter to make a smooth crescent shaped relief. Couldn't have done that with the 24mm discs. And you can cut much deeper. OTOH, you can cut much finer, and thinner lines with the small discs. I use them both all the time, and pick whichever suits my current task the best.

Now, I just wish they'd make a bit larger and more durable wire brush attachment!!
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PostPosted: Fri Jun 12, 2020 1:59 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

Isn't that always a consideration? Wink
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PostPosted: Fri Jun 12, 2020 2:11 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

The red disks caused Covid. They tried to get the new ones in time but Dremel was too late.
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PostPosted: Fri Jun 12, 2020 11:16 pm    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

Those are good looking louvers. Patience and skill = good results.


?Waldo? wrote:

I cut those louvers using only the screw-type fiber reinforced wheels:
Image may have been reduced in size. Click image to view fullscreen.


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PostPosted: Sat Jun 13, 2020 7:39 am    Post subject: Re: Advice on small dremel metal cutting wheels Reply with quote

?Waldo? wrote:
I have been using the screw style for more than 20 years on automotive projects. I have used the discs for cutting steel, aluminum, stainless, and multiple types of cast iron. I've used them on exhaust bolts, cutting sheet metal, cutting thicker steel up to 3/8" thick, cleaning up welds, etc, etc...

I cut those louvers using only the screw-type fiber reinforced wheels:
Image may have been reduced in size. Click image to view fullscreen.

Do you have a build thread? Interesting bus already.
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