I'd want to have some idea what the wood tube is being used for. If no explanation is forthcoming, it might be for smuggling . . .
It would explain the requirement for boring it without splitting. Presumably the end will be plugged with a plug cut from a slice taken off before boring commenced to match the rings. For it to be worthwile, the payload must be high value so probably drugs or worse. If you think I'm being paranoid, read