Hitachi is well respected also.
I've not had the chance to test drive Hitachi's power hand tools, but they do appear to be up to standards for professional use. They sort of look like Bosch clones, but looks can be deceiving. I do for a fact like some of their *larger* pieces of equipment (table saws, band saws, planers, jointers, etc). I bought a 10-inch (blade) Hitachi table saw recently because I needed something that I more easily move around than my heavy-as-hell "old" Crafstman 12-inch table saw.
Pretty much across the board, DeWalt makes outstanding power tools. Bosch, Ri
dgid, Porter-Cable, and the pricier Delta equipment all excellent. By the way, I was just using my bad-ass 18-inch Ridgid bandsaw this past weekend.
As far as drill motors go, Milwaukee has manufactured excellent drill motors for several decades. But, nowadays, they have very serious competition from the likes of Porter-Cable, DeWalt, and Bosch. I own a couple of "older" Porter-Cable drill motors. I also have a 12-inch Delta drill press.
Now that I'm on a roll here, I also have a geared mechanical hand drill and a couple of braces -- which are crank-type hand drills -- all of which are used for doing delicate and/or precise drilling jobs.