Get a strikemaster lazer auger and get on ebay for the attachment. Make sure you get a good cordless drill because a cheap model will not last. Make sure the drill is at least 18 volts and keep the auger to a 5 or 6 inch for best results. If the ice is over a foot thick stay with your gas auger.
I have one and use it first ice till the ice get to thick then its time for the gas auger.
Bob