Ditto, I have a cordless one.... When I take my nitro cars racing it's lifesaver, stripped out screws etc... I just put on a thin cutting disc and make a groove and grab it with a flathead screwdriver.... On my friends truck two of the clips were stuck in his u-joint slot thing (What the clip rides in to hold the cup in) got it and and a chunk was still in there, we cut the rest of it away with the dremel.... Used it tons of other times too... The battary one like I have lasts over half hour on a single charge and it just as strong as all the other ones...