An additional idea, that someone mentioned a year or so ago, that I sometimes use is...if I am drilling really small entrance holes in a piece of fret work that has a lot of small pieces, I first use my small awl on the back side of the piece to help open the hole a little to help me as I guide in my blade, but also you can take a pencil and stick the lead into the hole and give it a twist. This really helps to see the entrance hole, if you bottom feed, as I do. If you have not tried this method, use it one time and I believe you will see what I am saying could be very helpful.
Dick
heppnerguy