Snapon Tools makes a kit that has a broken tap and drill bit removal removal tool. You may be able to also get something similar from your local auto parts store. They work pretty good, but tend to be expensive. another thing you can try on the drill bit is a very small set of needle noze pliers, if you can get around the flukes, you might be able to turn it backwards enough to get it out. Good luck, your in a bad situation.