Dewalt DCD776S2A - 1.5 Ah, 18 V Hammer Drill Driver with 109 Pieces Accessory Kit works on 18 V XR Li-Ion battery technology. It is ultra-compact seven light in weight and so can be used even in confined areas. DeWalt Hammer Drill Driver has two speed all metal transmission for extending the lifetime of the hammer drill. It has 14 positions adjustable torque control for consistent performance in a different type of materials and screw sizes. It has an intelligent trigger design to offer extra control over the device. Dewalt DCD776S2A has an improved ergonomic design and rubber grip to provide extra comfort. Steel belt clip and robust magnetic bit holder provides better storage solution.