I picked up the ice master drill attachment for $26, and put it on my 5" lazer. My Milwaukee 18V drill slices right threw 11" ice like it wasnt there.
Its quiet, and light weight. I use it for running and gunning for perch, and have cut over 40 holes on a single freshly charged battery. I do carry a spare battery with me, but the two combined dont weigh more than a gas power head..
Just a thought
kb