High performance motor delivers 330 UWO. 2-speed gear box (0 to 400/0 to 1600) delivers the power needed to complete large or small applications. Metal ratcheting chuck minimizes bits slipping in chuck. Battery gauge displays charge remaining in the battery. LED light brightens dark work areas. 20 V max Lithium-Ion batteries with 1.5 Ah cells delivers more power and runtime in a smaller package. Compact size (7-3/4 in L) and lightweight (3.5 lb) allows tool to work in tight areas and minimizes user fatigue.