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Okay, having worked my way from 5 micron (approx 3k) down to 80 grit SiC, the initial surface is rougher than 80 grit, so feel free to start there.. Also, the unpolished side in my case seems to be...

So, I ordered a hard black from Dan's, and a translucent black(grey) from natural whetstone.. Just got the translucent black.. Here's the information sheet provided:

Skipping their five step...

Are Dan's hard blaco stones what others classify as surgical black? Is there anything special about a ttranslucents black? And does the different proportions of cryptocrystalline to micro crystalline...