C2 vs. C3 - better/worse, or tradeoff?
Based on reviews here, I had about decided to get the Yonico set of 70 bits to gai some variety and some specific sizes I lack like larger roundovers.
Then I noticed that the 70-bit set, at $2 per bit, uses C2 carbide.
Their 50-bit set, at $2.30 per bit (a price difference that makes sense by quantity alone), uses C3 carbide.
All their individual bits and smaller sets also use C3 carbide.
I read some good explanations of the differences here before, but cannot find them now.
Is C2 carbide simply cheaper and less good for router bits? Or is it more of a trade-off, such as C2 being harder (sharp longer) vs. C3 being less brittle (less dangerous), or vice versa?
Or, since it's hard to determine the accuracy of the grade specification anyway, do they possibly just misuse C2 as a catch-all label for the bottom tier of their quality control?