Do not drill it out. Best trick I know is to empty the pot and put the closing rod in a cordless drill and push it down in the hole as close to the right pouring angle and run the drill forward and reverse slowly a few times. Kind of like lapping in a valve on a engine head. I also unscrewed the weight on the hold down rod and made a heavier weight by filling a 3/4 fitting with lead and threaded it to fit the hold down rod. A lot more weight on the spout rod.I believe it is 8-32 threads. My 10 year old pot rarely leaks after I did these 2 tricks. Also look at this: Any Lee product of any age or condition that is currently manufactured, will be reconditioned to new if returned to the factory with payment of half the retail price + shipping. http://leeprecision.com/product-returns.html
Lee Precision, Inc.
4275 Highway U
Hartford, WI 53027