Making a simple (yep, sure....) project for my wife.
A couple cup hangers for the side of a cabinet.
Got some Shaker pegs, drilled the 1/2" hole specified. Peg won't go.
Measured peg, about 9/16". Test drilled. That size too big.
What size is between 1/2" and 9/16"? Answer, not anything likely to be in the average shop.
Finally got crude and just reduced the peg part of the pegs on my 1" sander/grinder belt.
Now I'm happy. Sorta.