And in addition to that, there is a good chance for you to need a rotary hammer at some point. A regular drill in percussion mode can drill in stone or concrete in theory, but it will be 10 times the effort, if you can make it at all.
Rotary hammers are not interchangeable with regular "high power" drills because the bits are mounted differently, though you can make do with a chuck adapter.
If you're regularly drilling metal, you might want an air drill, too. Which gives you an excuse to buy a quality air compressor, which justifies even more pneumatic tools...
Rotary hammers are not interchangeable with regular "high power" drills because the bits are mounted differently, though you can make do with a chuck adapter.