Do you know if he is shaping the handle by hand, sander, files, etc? That looks like it will just melt in your hand!!
While Lorien sleeps I might as well answer that!
And the quick answer to that would be all of the above, plus a bandsaw and a drill press!
I begin by bandsawing away excess material and then go to the drillpress to smooth out after the bandsaw.
After that I make the handle octagonal using my sander.
Then to get the final shape I sometimes use files, but almost only with hand held sandpaper.
This is one of my most favored parts of knife making!
I would like to take this opportunity to thank everyone for the kind and inspiring words in this thread!
It is interesting to follow "your own" WIP thread like this!

So far I have not felt the need to comment, Lorien has been handling this very well I think.
But if anyone wants to, please feel free to ask me any questions as well!
Regards
/Magnus