I found this video which looks similar to mine. Do I need that special tool to remove it?
http://www.youtube.com/watch?feature=player_detailpage&v=Q26twSvvhL8#t=265s
I'm replacing the stall shower but I can't figure out how to get the drain out. I don't want to pull and potential hurt the drain plumbing but there does seem to be a way to remove it otherwise. Thoughts?