> You still don't understand. This is for boards that are NOT SENT TO A BOARD > HOUSE AT ALL, but that are homebrew etched and drilled. You're right, I still don't understand. If they are never sent to a board house and are homebrew drilled, what difference do the NC drill files make at all? I'm assuming a hobbyist who doesn't have an NC drill machine. If you're going to manually drill the holes, probably using a drill press, then you can put any bit you like into the drill regardless what size Eagle thinks they should be. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics