DEWALT DCD985B 20-Volt MAX Lithium Ion 1/2-Inch Hammer Drill/Drill Driver  (Tool Only) High efficiency motor delivers 450 unit watts out of max power for superior performance Also has a LED light with 20 second delay after trigger release - Batteries not included Uses DEWALT 20V Max lithium ion batteries which offer longer runtime and enhanced durability Heavy-duty 1/2-Inch metal ratcheting chuck with carbide inserts Kit includes drill and 360 degree side handle 3-speed all-metal transmission Battery & Charger Sold Separately *Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18