Home Depot offers the Bosch 18-Volt Lithium-Ion Compact Hammer Drill, model no. HDB180-02, for $99 with free shipping. That's the lowest total price we could find by $80. It features two Lithium-ion SlimPack batteries, 360 inch-lbs. of torque, a double-sided Philips drive bit, and hard carrying case. Deal ends May 17.