I have a DeWalt that came as part of a kit a couple of years ago when I upgraded most of my cordless tools from Ryobi. Has worked really well for the 20-or-so holes I've done in concrete, in addition to the everyday stuff.

Sounds like you're good with borrowing your Dads' though?

::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::