It really wasn't bad at all. I would not try it without a drill press, though.
I used a 16" radius block, used for sanding frets, to keep the neck level with the drill bit on the press.
I clamped the neck, to the block, to the drill press table, and had at it with a 1/4" drill bit.
I used a walnut 1/4" dowel rod. Closest I could find to Wenge.
James