I don't know what the dia. of your turning is, but could you make a drill jig from PVC pipe that fits snug, or close to your turning? Or, if not perhaps you could bore the ID of some PVC pipe, or suitable material, that suit different size turnings. Once turned, you could drill the holes in the PVC pipe using a V-Block to centralize the pipe & set the hole spacings. Then you would have however many drill jigs available for future applications.
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