Which one would that be?
They look like they have three different ones.
http://www.harborfreight.com/80-piec...kit-97626.html
http://www.harborfreight.com/profess...kit-40457.html
http://www.harborfreight.com/96-volt...kit-92880.html
As appetizing the cheap one is, I really like the flex shaft that the cordless one comes with, however, the cordless one is well, cordless.
And for a cheap tool, I'd much rather have a plug as it should obviously have as much power as it needs as opposed to a battery.