Originally Posted by
rootboy
Only God and one other guy can make a file go perfectly flat and true. That's why they invented machines.
W.O. Bentley.He came down out of his office one day to figure out why things were held up on the floor and it was due to the lack of the correct size nut. While the crew watched he made one by hand and by eye with a file and went back to hiss office without a word. One of the machinists checked it out later and it was perfect.