Properly drilled antenna holes should look clean, and indistinguishable from the quality or look of a factory hole.
"jagged or "chewed" edges are usually a result of your 19 year old neighbor who is a "car radio expert" and uses spade bore/paddle bits or a hole saw intended for wood to punch all his holes.
A good communications installation tech can get a wire anywhere.. because ideal antenna placement isn't always where it's easiest to get a wire.. and unlike your local CATV or Satelite sub-contractor, just running the line down the side of the truck with romex staples isn't considered acceptable.
