I don't think it would be hard to build a chuck with built in 90 degree backlash. Ya got me thinking...
Rick
Perhaps your time would be better spent building a furnace to melt all slotted screws into an unrecognizable lump of slag unfit to serve even as a door stop. :-)
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Regards, Marv
Smart phones are to people what laser pointers are to cats
Homo sapiens is a goal, not a definition
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