From: muratlanne@gmail.com   
      
   "Jim Wilkins"  wrote in message news:10njca3$3jr03$2@dont-email.me...   
      
   I made custom (steel) bender dies, I think by rotating the blank against a   
   fly cutter set to the tube diameter.   
   ----------------------   
   No, that die was cut with an end mill to fit 1/2" OD tubing. An endmill cuts   
   faster, a fly cutter or boring head could make the light finish cut. I mill   
   with the end instead of the side flutes so I can regrind it without changing   
   the diameter.   
      
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