I just tried it on an old pocket knife, and it got it shaving arm hair without much trouble. It’s fiddly being so small though.I have one that looks like that and mine may not be a certified washita from norton but it surely isn't a soft ark. Let me know what you think of it, I've been looking at that company for a variety of stones. You can feel the difference when you take steel across it. Washitas feel more aggressive but in a weird way, feedback feels like tiny, smooth, little rounded bumps very consistently though it's eating steel like it gets paid to do it. I've gotten stones that were called soft arks that felt like washitas to be because of their weight and texture. I'm finding now washitas have an enormous range, one as big as classic arks. They can go from crazy soft and work like 220 grit sandpaper to VERY dense and hard like the hardest of black arks(amass as fine too). I don't think anyone can give you an all encompassing answer. You got to try them out. Use the name as a general guide and judge the stones merits on the stone. Also, cheap doesn't mean crappy in every circumstance!