During the last storm we had I was with the fiber crew and a guy was using a Milwaukee to drill the utility poles, big bit for thru bolting. Said the drill ran a long time between charges. It was a high capacity battery tho, expensive but worth it in my opinion.
Yep, I'd bet my 10 year old Milwaukee with a 4 year old battery would rip the guts out of the crappy new Dewalts at work if you chucked them up against each other. LOL