Is the Graff Black disk an angle grinder revolution?

last month I got an email from a company called Graff, asking me if I wanted to

try out their latest angle grinder product

I had a look at their website and the demo video and there was kinda impressive

So I said, sure I'll give them a go. Who knows maybe this is some sort of revolution in angle rider technology s

So they sent me a couple of these metal slitting discs called black

And as you can see they are definitely not black.

But ironically they do sell a black disk, but that is for cutting wood

Now, I've already tried one of these discs on some angle iron

And my first impression wasn't great.

I found it loud and harder to control and slower than a regular slitting disc which actually is black

But you know, first impressions can be wrong

So I'm going to give this another go. this time make a little video.

Because that's probably what they want. A review video

By the way, there are lots of review videos coming out for this product.

They must have been sending out a shitload of these

So let's compare this disc with a regular slitting saw disc and see if it can change my mind

I'm not a big fan of this type of packing material you always need a tool to open it up and that can be inconvenient

and it can also really hurt you

I've already experienced that once but who knows this might be a nice addition

to that Island the human race is building somewhere in the ocean

but Greta Tunberg might have a different opinion

she has lots of opinions you asked me

If you are the kind of guy or girl or whatever. that's me being politically correct

Who always uses a angle grinder wrench

you probably haven't done enough angle grinding in your life

You should just lock the disk in place and hit it with the apalm of your hand

this one is a little bit tight. There it is.

I've never really hurt myself. It might result in a bit of a red spot. but

But that's all of it

Just don't do it with a wire brush

And you don't really need to tighten this up, either.

That's more than enough/ I've never had a disc come loose

All right time to cut up some scraptonium

and I assume this is mild steel

It's about a centimeter thick and three or four centimeters high

I definitely recommend using ear protection because this blade is loud

And eye protection is probably also a good idea

This metal disc won't wear as a regular cutting disc

So there should be less dust. And I will try and see if I can prove that by catching some of the dust with this rag

Although there is good chance the rag might actually catch fire. But I will deal with that if it happens

Another benefit of this disc should be that it won't heat up the material as much as a regular disc

So I'm measuring temperature here

and I will check it again after I'm done with the cut. seven point four degrees

All right, glasses ear protection here we go

The guard is broken. I dropped the angle grinder too often

Finally

82. inconsistent readings and I just installed a new battery

Well the highest: eighty degrees

but still it will definitely burn you. But it didn't get red

There wasn't a lot of sparking and I'm pretty sure that with a regular disk I can start a fire

I definitely directed most of these sparks in the direction of the cloth and it didn't catch fire

the Graff disk is definitely producing not a lot of sparking

so that first cut left a nice sharp burr here

so let's see how good is the disk is that deburring

probably not as good as a flapper disk but it should be better than a regular disk

which can really disintegrate when you use it at an angle.

It fuck's up the matrix in here and sometimes pieces will come off flying

this being metal there's not much chance of that happening

That wasn't too bad. I kinda liked that

installing the fire blanket

all right. Ear protection, glasses, and here we go

No fire

although there is a bit of discolouration there

That was also a whole lot quicker than with graff disk.

And I don't think I was pushing as hard

Because with these regular cutting discs if you are press so hard you will wear them out rather quickly

I forgot to check the temperature I guess I will have to redo that test

all right this has cooled down to a bit more than 8 degrees

So let's try again and see if I can start a fire this time

No fire!

just a little bit of a black-spot well actually it's a hole

that's all folks. I'm sorry

a bit of a burr

let's check the temperature

almost 70 degrees

let's flip the test piece and to give that Graff disk another go

see if it can also burn a hole in the cloth

finally

temperature:

124 degrees hmm

it says here on the packing material

to avoid overheating at the cutting rim the period of continuous work should not

exceed 50 seconds and a minimum 10 seconds interval between cuts should be observed

I think that might have been a bit longer than 50 seconds it felt like

at least twice as long as with the regular cutting disk. but as you can see

it didn't burn another hole in the cloth here.

the sparks are more sparkly not as black as with the normal slitting disc

and again a nice sharp a burr

let's try a piece of aluminium

see how good this disc works on this stuff

I forgot my air protection and glasses

let's try again

less overhang will probably also help with the noise

nasty burrs. just like a regular disk

A lot more dust

This wasn't as quick but there wasn't a whole lot of aluminium dust. I like that

it also left a bit of a burr

okay, now just for fun, let's also try a piece of wood

not that I expect this will work brilliantly but

well if you're lazy like, me you sometimes use the angle grinder. you work with what you got

I'm pretty sure this won't be as loud

first a regular disc

well, that really stinks up the place.

I guess I should open up the door and now

and now the Graff disk

Well, that is definitely slower

I was hoping it would do better with all those diamonds bits on here

but unfortunately that's not a case

I guess that concludes my primitive testing

the first time I saw this disk it immediately made me think about these

diamond cutting discs for concrete and stone. and I actually considered cutting

up this brick here but that would really mess up the workplace and because it's

already dark outside I'm skipping that test. maybe someone else can do it

I guess it's conclusion time after all these tests that I've done I have not

really changed my mind this certainly isn't the angle grinder revolution and I

think Graff might need to consider changing their domain name from speed

cartograph calm to slow grinder graph calm it certainly hasn't impressed me a

whole lot but who knows maybe I got it all wrong lots of other reviews out

there that have been rather positive and to be honest I must say I did like the

performance when grinding aluminium less grinding dust is probably a good thing

and it is certainly healthier and less Sparks is probably also a good thing if

you want to prevent fires and who knows maybe companies might even save a few

dot on their insurance premium if they start using these disks but on the other

hand that might not compensate the loss in productivity and then there is the

price almost $30 for a single 125 millimeter disk is certainly a bit steep

as usual most new products are probably overpriced before I started on this

video I bought myself back with twelve cutting discs at the local action store

I think the action store might be comparable to the American doll store

but I'm not sure about that anyway this 12-pack cost me less than

four euros and that's a bit more than four dollars they are probably not the

best discs out there but they will last an amateur like me a long time if I

treat them with a little bit of respect and if I stop dropping the angle grinder

now I thought it was interesting that the company graph isn't another Chinese

company trying to make a name for themselves on the Internet

they are actually based in Minsk in Belarus one of the founding states of

the former USSR we and the Netherlands here call them theater restaurant that's

wise Russia in English but officially it's the Republic of Belarus now I am

all in favor of a republic I wouldn't mind trading in the king that we have

over here for a democratically chosen president I'm not saying the man is

doing a bad job representing the Netherlands but I think it's an

antiquated system probably kept in place by nostalgic feelings and I just think

it's wrong on principle but in the republic of Darrow's the president has

been in power since 1994 I believe elections have been held back and the

presidential term has been extended at some point and I'm not saying it's wrong

but it definitely is a bit fishy I don't want to pass judgment on other countries

leaders it's a is certainly not something and outsiders you do

it hardly ever improves the situation and most countries cut the year leader

they deserve anyway look at the Americans they got Trump good luck with

that I'm sorry I'm starting to rent again so

I will shut up now I think I've done enough talking for this video so until

next time bye