Good choice. I have the 8″, and have used it a few times here in Maine. Its blazing fast. A few tips for the Drill. It should be 750 in lbs of torque or higher, brushless motor preferred, a 4 ah battery or higher, and should have have a side handle. Settings on the drill should be on setting 1 and Drill mode. As for the auger, Ive heard a few reports of the adaptor screw backing out a little, causing a little wobble between the adaptor and auger. Happened to me the first time out with it. I tightened it another 1/4 turn and its been solid since. Enjoy!!