Carbide insert quality differences query

[Ken from ontario]

I have bought many different inerts from ebay,all supposedly are quality brands, made in Japan or Korea but I'm under no illusion they actually are genuine, I even bought a few Sandvik carbide inserts that was proudly marked made in China,but as a hobbyist I find them all to perform well and to my satisfaction. have only broken a couple but totally it was my fault, now I know a little better .
I think Ray C said it best:

For people who are not pushing the carbide very hard, the cheap stuff will probably do the trick in most cases. If you're pushing the carbide to it's published limits, you'll know in a heartbeat if you got substandard junk.

 

[aliva]

check Pierre's Garage he has video test of some inserts from Banggood