Milwaukee 0920-29 V18 18-Volt Lithium Ion 4-Pack Combo Kit 18-volt lithium ion combo kit with reciprocating saw, circular saw, hammer drill, and worklight Circular saw runs maxmum 3200 rpm; sawzall recip saw delivers up to 2700 strokes per minute; dril offers 450-inch-pounds of torque 18-volt batteries fit existing Milwaukee 18-volt Ni-Cad tools; existing 18-volt Ni-Cad batteries will run lithium ion tools Kit includes universal charger, battery, carrying case 5-year warranty