b66cb0f1   
   XPost: alt.religion.kibology, alt.slack, rec.sport.pro-wrestling   
   XPost: alt.drugs.hard   
   From: charlesanderson@optushome.com.au   
      
   Father Haskell wrote:   
      
   > On Nov 28, 12:22 pm, Steve Thompson  wrote:   
   >   
   >   
   >>Say, if I file down 1/2 of a crowbar and give it an edge does that   
   >>make it technically a knife?  Could I file a patent claim for such a   
   >>thing?   
   >   
   >   
   > Generally O-1 or 1095 tool steel, aka "drill rod."   
   > Heat treats easily, very good choice.   
      
   Usually, but more likely mystery metal.   
      
   You'd probably have to make a small test cutting edge first to see if   
   the metal could hold an edge and have a little flex.   
      
   If it holds an edge, that's part 1).   
   If it flexes that's part 2)   
      
   An alloy only has to pass part 1) to make a blade.  Part 2) determines   
   how thin you can make the blade.   
      
   The reason that you do a sampling like this with mystery metal, is that   
   you have no guarantee that the next crow bar will be the same alloy.   
      
   Regards Charles   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)