I have a Milwaukee impact ratchet, it's impressive what it will remove/install. The only downside is it's not a "ratchet" unless powered. meaning unlike air ratchets if it doesn't have enough power to break it loose, you cannot manually break it loose, or give an extra Uga Duga, to tighten more.

What I really like is it's not a knuckle buster like air ones are, My 7-year-old grandson can use it, he took a set of brake calipers off by himself with it.