Sears offers the Craftsman 20-volt Bolt-On Max Lithium-Ion Drill/Driver, model no. 16496, for $79.99 with free shipping. That's $40 off list and the lowest price we could find, although we did see it for $20 less in July. It includes a drill driver, Bolt-On body, battery, and charger.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.