That is the one thing that worried me about the DeWalt I had. You have to figure this repair centers do not have much if any experience with the scroll saws. I could be wrong, but that is my perception. Of all the DeWalt tools, the scroll saws may probably be one of the lowest volume of sales.
Glad you joined us. We are here to help, and give hooo's and ahhhh's to all the neat things you are going to make. Great bunch of people hang out here.
Len is correct.
What you want to look at is "spindle travel" or "quill travel" to determine the depth of hole that can be drilled. This saw has only a 2" quill travel, from what I can determine.
I use the mini bits from Mike's workshop. I use #63, #65, #70 most often. My drill press chuck will hold them. I have to drill a little, raise the bit out of the hole and clean the flutes. I do this while the bit is turning with my finger nail.