Angle grinder cutting disks - cranked or flat?

[RicksAlfas]

Why are some angle grinder cutting disks cranked, and some flat?
I’m talking about small 115mm diameter ones for cutting metal.
What’s the advantage of one over the other please?

[RicksAlfas]

Thanks for the replies everyone. I think the butt naked except for a jockstrap and full face protection is the way forward.

These are the ones I was looking at. Like others have posted I've only seen flat cutting disks and cranked grinding disks before, but these are Bosch cutting disks in either format:

Flat:
https://www.amazon.co.uk/dp/B007PB1GSC/?coliid=IVH...

Cranked:
https://www.amazon.co.uk/dp/B009RQ39C4/?coliid=I1Y...

[RicksAlfas]

dhutch said:

Fair enough.

I have to my knowledge only ever seen/used the flat 1mm thk slitting disks, and then thicker (circa 4-6mm) grinding disks, although I have heard mention of thicker cutting disks (and deliberately referring to slitting disks not cutting discs) and they are certainly 2.5mm thick disks branded for cutting.

Cant see why you would use a 2.5 cutting disk not a 1mm but then have never tried one!

Thanks. Me neither. Have ordered the thin ones as I've used those before.

Good safety advice from other posters as well. Thanks.

[RicksAlfas]

Blimey. He'll be wearing two pairs from now on!

[RicksAlfas]

Dave. said:

RicksAlfas said:

Blimey. He'll be wearing two pairs from now on!

Trousers or safety specs?