I am in the middle of a new house and almost all the drilling is done with the 18v Milwakee impact and the irwin speed bits like pictured. For the larger holes I have a 28v milwakee right angle drill.
The house I am doing is almost 10,000sq feet and not having to drag cords around is such a time saver. If the drill ends up in the trash when I am done the time I saved will more than offset the cost of it.
Also don't throw the bits away, I have a dremel tool I just sharpen them with and only takes a few minutes to do each one.
