Haha, what a great choice to have the head and the drill move together! This little animation makes this awesome!
LOL, like he is driling directly in the head... realy made me laugh, too bad that the max rate is 5 :D
This one does a good job with the "convey a loud noise" idea.
Yes, very funny
lol, very funny
Could do with a bit of shading, tho :\