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Author Message   Mattboston Tinkerer Username: Mattboston Post Number: 3 Registered: 01-2009 Rating: N/A Votes: 0 Posted on Monday, March 23, 2009 - 08:57 pm:    Hey JB, Just got home and happened to have a film cannister filled with parts stripped from a GSN. Opened the case- dumped it on my desk and one bearing rolled right into my hand- at 1.975mm. So it looks like 2mm is the winning size. Unless, of course, there are other bearings in there that did not make it into my scrap pile. Matt