>>/958027/
too lazy, now that it's sharpened I don't want to damage the edge 
 >>/958028/
> The next one you make will be flat.
I don't need two, but I'll see what I can do out of the rest of the disk 
 >>/958029/
I have no idea man, it's from one of these things 
I just quench a small piece of steel beforehand to see if it hardens, and if it does I proceed to continue building the tool