I recently finished my second lugged frame though I don't have any facing/reaming/chasing tools so I had to take it to a shop. Everything went by fine until they went to face the bottom of the headtube and facing bit was hitting the portion of the lug on the downtube. These are just standard size LS long point cast lugs with a 1" headtube. He was using a normal Park headtube facing/reaming tool. I wasn't there as I just dropped it off to run some errands as I don't live by a shop anymore and drove over an hour to my closest shop.

Mind you I've done this all before when I worked at a shop and built my first frame so I don't know if the employee just didn't know what he was doing or if I need a different brand facing tool to finish this. The top of the headtube didn't have any issues but you can even see where the bit caught the lug. I want to ride this before it snows! lol.