DeWalt DCF815S2 12-Volt Max 1/4" Impact Driver Kit for $115.66 shipped.  Note that the automatic discount is applied during checkout as shown here.  It is relatively compact at 6-1/4" long and 2.3 lbs and comes with two batteries, and features maximum torque of 950 inch-lbs.  Most places have this DeWalt impact driver kit for about [...]