Ok Kenny I checked yesterday and forgot to post, and now I'm second guessing myself on the size. I think it's a 9/32 drill bit, I'll recheck tomorrow but that the number that's in my head:mad
Yep it's a 9/32 drill bit that fits. If your going to get a bit I'd stay away from the bits that have the little tip (bullet bits) on the end that way it will center better in the hole.