that outside 'set screw' and the motor's 'oval' hole is designed that way for a good reason - giving you the ability to much more easily 'set' the screw into the motor housing, otherwise if it was simply the correct 'size' threaded hole, you'd have to be so exact, without also being able to 'see' it, that it might be impossible to thread in. You'd be surprised at why somethings are sometimes done, even though your own experience might lead you to believe otherwise - it's engineering, and for good reason.
enjoy.
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the Turners...
two Campers, two Electric cars
former diesel pusher traveler
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