I thought the DFs are differentially tempered? then again i could be wrong too.. <img src="/ubbthreads/images/graemlins/tongue.gif" alt="" />
Hmm...I don't think they are. I believe that all the SY knives so far have been through hardened, but I could also be wrong too. I don't recall people ever mentioning a hamon (usually caused by differentially tempered knives) on the DF.
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Mr. Pink, Did Ban put that edge on that knife, if not who. That is really nice. Makes it one sharp inde <img src="/ubbthreads/images/graemlins/cool.gif" alt="" />structable knife!