Dewalt Drills seem to be pretty well built and serviceable
 

I've had mine for about 6 years and have used it as a hammer, and put it through hell and back. Still keeps going and works like a charm. More than I can say for the newer Craftsman stuff I have.

My Milwaukee stuff has been pretty indestructible.

Both those brands are well built. Craftsman, anything other than their hand tools, have always sucked. Even decades ago, they sucked. The only thing good about Craftsman is the no hassle warranty, which others are now matching and pushing them out of the competition.