That might be a little on the weak side, but it MIGHT work...
I used this one.
JEGS Performance Products 80795 1/2'' Drive Lithium Powered Cordless Impact Wrench
Its great to take to the track when I swap out wheels, just finish off with a tq wrench. I even used it today to bust off a crank pulley bolt and locktited flywheel bolts on a motor I'm disassembling.
At the time I was able to price match by using harbor freight's item number, but I dont know if you can do that now. Even a corded unit from harbor freight would probably do for the job.
Electric Impact Wrench - 1/2"