Great undermount drill holders. I have added the Impact and Driver drill onto the same build plate but you can delete one if not needed. I suspect these would fit a number of 20v hand drills.

Made to be an undermount I have made these out of PLA and they have been in a garage in Houston TX (hot and humid) with no structural or functional issues.

Added a 3rd wall from my original print for additional support just for additional support.