a lot of these are 125mm to suit the Aldi grinders so it depends if you have a 115mm grinder or notyour local Aldi shop
You get what you pay for.
Online Aldi still doing them.I bought some flap disks last week (about £4 each as I needed them asap), yesterday Aldi/lidl were selling a 4-pack of them for less than a fiver.
I now have plenty of spares, and no need of them for the immediate future. Typical.
Edit - beaten to it by @Arc Tourist while I was typing..
..
We did do a fair bit of testing on various types and some definitely work better than others for certain applications so if it's a specific job you are doing let me know as I have a few notes on what was good for what
But they do fit in Makita 4 1/4 inch grinders just and sooa lot of these are 125mm to suit the Aldi grinders so it depends if you have a 115mm grinder or not
I have been really happy with my discs from myconsumables.com. cheap as chips, and still seem to last a good while. Better than the ones I used to pick up from eBay / Toolstation whenever I ran out.
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115mm x 1mm Metal Cutting Disc Inox (4.5″) - MYconsumables
For extremely fast and precise cutting requiring minimal effort and burr-free. These discs can be used to cut solid materials, pipes, profiles, and stainless steel. Features & Benefits: Extreme cutting capacity with very long service life Extremely thin for precise, virtually burr and...www.myconsumables.com
Probably Klingspore or something like that.Thanks for all the advice I be actually found someone now selling them dirt cheap he does a box of 400 for £100 or 2 boxes for £180