"Dave" wrote in message
...

The holes are too close to do that, so I have to blank off old holes and
new with the plug I want to use. The handles are being replaced for the
third time :-(((

I popped into aldi and bought some plug cutters yesterday.
They make wooden plugs to fit holes in 6/8/10/12 mm and are available either
tapered or parallel.
You do *need* a bench drill to use them safely.