For percussion carbide-bit drilling in concrete and masonry or drilling without hammering in wood or metal. Hammer drill up to 7/8” holes in concrete and masonry. Dual speed range: Low, 0-1350 RPM; High, 0-3200 RPM. 0-52,000 blows per minute. Turn collar for selection of hammer drill or drill only. Adjustable depth rod and side handle. Double insulated. 6.5 amp motor. 115VAC.