Whitworth Wrenches

[mit-eddie!ucscc.UCSC.EDU!red4est!lrc@EDDIE.MIT.EDU (Larry Colen - Nerd in a black leather jacket)]

  If you find yourself in the position that I was in with the whitworth
sized filler bolt on the spridget tranny, there is an alternate solution
to making your own wrench. 
  File the head of the bolt so that an easily obtainable SAE wrench 
will work on it.
   LRC