From: muratlanne@gmail.com   
      
   "Snag"  wrote in message news:v5keu4$2sp2r$1@dont-email.me...   
      
      Am I really going to need to allow for millionths of an inch ? I'm   
   looking at an 81 piece set from Shars , a grade B with the deviation   
   table for under a hundred bucks . Looks like the biggest variance is   
   .000034" , or about a third of a ten thousandth . I can't see any   
   project that I might get needing that kind of precision ...   
      I'm considering buying the set just because I've kinda wanted some   
   and I think they'll get me closer to perfect in my upcoming depth mike   
   project . Since they can trace back to a national standard I can also   
   use them to check all my other micrometers , none of which have been   
   calibrated for at least 40 years , and in some cases longer than that .   
      
   --   
   Snag   
     It's great to be straight !   
   -----------------------   
   I've never need to use my or a company gauge block set, even when I was   
   building prototypes for the Air Force. They were nice to have for checking   
   and calibrating used micrometers etc, but usually I made one part fit   
   another instead of holding a tolerance range on a batch, and when I did   
   0.001" was close enough for electronics packaging.   
      
   A couple of micrometer setting standards have been enough for me.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)