that stone also looks like a scissor stone (pen knife hone size) I bought my mom for her fancy quilting/fabric scissors. softer than an ark for sure, but do well enough quickly on scissors (I recently cleaned up a pair of her kitchen scissors with hers and my ark) . it's probably just fine on a field touch up for a knife as well.Well, I wasn't expecting anybody would think it appropriate for my razor; if nothing else, I don't know what size the grit (or whatever's getting measured) is. Somebody wanted to see it, so I obliged.