Anybody still using silicon carbide stones

still have a bunch of these including 2 12 in. stones.we always used oil or kerosene to keep hones from loading up.nothing wrong with product;diamonds are so easy however you wo'nt be able to whittle hair like some of our talented guys do.
 
How do you know what you are getting in terms of grit? I don't need an exact number, but I'd like to know that I'm getting at least a rather coarse (100 to 200 grit) stone when I buy silicon carbide. As for "fine", I think that's probably a complete waste of time with Sic and I'd use something else. But I have interest in buying a medium sized quantity of coarse stones and the cheap ones I see online have next to no information. For example, here's an Sic stone that's 8x2x1, says it's "finest quality silicon carbide", and it's a whopping $0.93. Yes that's 93 cents. :)

You'll have to buy one and see. The problem with the cheap silicon carbide stones is that there's little quality control. So the grits vary from batch to batch, and often within a batch. Some of the ones I've used have also had rather large inclusions.
 
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