This compact Gas Powered Rotary Hammer Drill will allow users to drill rock and concrete in almost any environment (always use with proper ventilation in enclosed areas). Besides being highly effective at drilling holes in the drill/hammer mode the tool easily switches to rotary only or hammer only modes and also has a unique feature allowing users to rotate SDS shank chisels to a preferred angle before using in the hammer only mode. Packaged in a blow molded case which includes 3 SDS+ drill bits (6, 8, and 10 mm), SDS+ chisel and moil point, depth gauge, manual, service tools, and fuel mixing bottle. Highly recommended for back country projects especially where electric power is not easily available and lots of holes will be required. Absolutely the best gas powered SDS rotary-hammer drill currently in production!