Jim Wilkins wrote:

For reference, last week I milled DB9 connector slots in thin plastic
boxes with a 1/4" carbide end mill on a Bridgeport and saw sideways
deflection on the first pass.


That would be a 'DE9' cutout, even though a lot of people use the
wrong name. The second letter is the shell size.


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The movie 'Deliverance' isn't a documentary!