I pegged the breadboard ends with a glued peg (3/16" ? 1/4" ?) in the center mortise and loose pegs in the end mortises. A drop or two of glue was added to hold the tops of the pegs to the upper surface of the breadboard end to prevent them from falling out some day. I did not feel that I need to drawbore the pegs as I had a good fit up as it was.