Several years ago i did only one of these for a collector (which often have different requirements compared to users)
Well hardened steel, but also a very bad factory "edge":
I had Richard J sharpen my ZT 0350 on his Paper wheels a few years back and it was Easily the sharpest knife that I owned and I Came here to see if Richard would sharpen 2 of my current edc knives but it seems like His medical issues have still kept him away From the forums and so the...
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More pics of this Arad and other Dustar models from the same collector::
Dustar Lahav 3.5″ fixed blade
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YouTube review of several Dustar knives by a member here: