The Milwaukee M18 18-Volt Lithium-Ion Battery 4-Tool Combo Kit comes with a 1/2 in. hammer drill-driver, a Sawzall reciprocating saw, a 1/4 in. hex impact driver and a work light. The M18 cordless system is powered by long-lasting lithium-ion batteries and offers powerful motors and ergonomic handling. The tools come with a helpful carrying case. Cordless tools powered by Red Lithium batteries deliver more torque, more power, and longer run-time than the competition. With the purchase of a 2692-24 Receive a Free 48-11-1840 M18 4.0 Ah Extended Capacity Battery, a $129 Value.