Your probably right. I don't think the sharp screwdriver idea will work. It is a lot harder material than you would think. How about screwing all the way through and just drill out the whole screw?

In the future, before you go drilling, find out whats behind what youre drilling, & set a depth limiter on the drill bit. You can buy them or wrap masking tape onto a bit.

justin_o_guy2 wrote on 08/01/11 at 13:51:54:

Also not to forget that brass is a material that differs from other metals in terms when the drill comes out the other side it tends to suddenly catch and rip through, damaging whatever is behind it. In a good machine shop we have drill bits modified just for brass. Even just drilling brass not all the way through it still tends to catch and rip further in if not being careful. We used to modify drill bits as to grind a 0 degree cutting angle to the leading edge, that eliminated all that "bite" and lets you drill brass nice and smooth.

Try this...  grind or file the tip of a small screwdriver into a pitchfork point... nice and sharp at the tips... then, gently tap it into the brass with a small tack hammer or something...
Then,... hopefully.. unscrew...
Squirt some penetrating oil in there, too...

It ain't over 'till it's over... ...

If its still working, go on with your life..then when you get the serious mod bug..bingo......and not to worry, there are quite a few reading this  with a knowing smile.

Mesa ain't that far away...  Try my cockamamie scheme,... or I'm gonna' go up there and kick yer' butt...

You got any friends up there that might help me with that butt kicking thing?...  
I'll probably need it... ...

I'm sorry for your accident.

I'm getting ready to drill and pull mine this week, so I'm going to be extremely careful.