I've bought replacement door knobs that look like they need a small 1" bore, and screw directly onto the wood. Unfortunately my door has the larger 2" bores and the door knobs screw into each other.
I've looked around online and it seems like everyone wants to make their small bore bigger - I want to do the opposite. Is there any way to accomplish this or are the new replacement knobs I have useless unless you're drilling in a brand new piece of wood?
I just don't understand why this isn't all standardized.