One of my early acquisitions was the 90 degree angle drill and assorted bits shown in Image 1 below. This was purchased from Ebay at an excellent price. The drill is used, of course, but the bits are all new.
I have a decent Harbor Freight air drill but it doesn't have a good teasing trigger. I found this Rand air drill for a good price on Ebay and it has a much better trigger. My primary drill is a Sioux 3600 RPM palm drill but the Rand is used for larger bits requiring lower RPMs (usually the larger the bit the slower the drill should turn).
The last item below is an inexpensive Kobalt brand electric screwdriver form Lowes. It turns about 120 RPM so I use it with a deburring bit from Cleaveland for most of my deburring tasks. You can also use it to countersink relatively soft metals as well. By the way, sometimes I just use the deburring bit spun between my fingers to deburr, especially in tight spaces.
